0001558370-22-001243 | 10-K | XBRL Viewer

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Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statements of Operations
Revenues	$ 2,208,042	$ 1,467,592	$ 2,294,352
Costs, expenses and other operating
Cost of sales (exclusive of items shown separately below)	1,579,836	1,378,479	1,873,017
Depreciation, depletion and amortization	120,327	121,552	111,621
Accretion on asset retirement obligations	21,748	19,887	20,548
Change in fair value of coal derivatives and coal trading activities, net	(2,392)	5,219	(18,601)
Selling, general and administrative expenses	92,342	82,397	95,781
Costs related to proposed joint venture with Peabody Energy		16,087	13,816
Asset impairment and restructuring		221,380
Gain on property insurance recovery related to Mountain Laurel longwall		(23,518)
Loss (Gain) on divestitures	24,225	(1,505)	13,312
Preference Rights Lease Application settlement income			(39,000)
Other operating loss (income), net	4,826	(22,246)	(19,012)
Costs, expenses and other operating	1,840,912	1,797,732	2,051,482
Income (loss) from operations	367,130	(330,140)	242,870
Interest expense, net
Interest expense	(23,972)	(14,432)	(16,485)
Interest and investment income	628	3,808	9,691
Interest expense, net	(23,344)	(10,624)	(6,794)
Income (loss) before nonoperating expenses	343,786	(340,764)	236,076
Nonoperating (expenses) income
Non-service related pension and postretirement benefit costs	(4,339)	(3,884)	(2,053)
Reorganization items, net		26	24
Nonoperating (expenses) income	(4,339)	(3,858)	(2,029)
Income (loss) before income taxes	339,447	(344,622)	234,047
Provision for (benefit from) income taxes	1,874	(7)	248
Net income (loss)	$ 337,573	$ (344,615)	$ 233,799
Net income (loss) per common share
Basic earnings (loss) per share (in dollars per share)	$ 22.04	$ (22.74)	$ 14.42
Diluted earnings (loss) per share (in dollars per share)	$ 19.20	$ (22.74)	$ 13.52
Weighted average shares outstanding
Basic weighted average shares outstanding (in shares)	15,318	15,153	16,218
Diluted weighted average shares outstanding (in shares)	17,579	15,153	17,298
Dividends declared per common share (in dollars per share)	$ 0.25	$ 0.50

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ 337,573	$ (344,615)	$ 233,799
Derivative instruments
Comprehensive income (loss) before tax	2,128	(1,328)	(5,892)
Other comprehensive income (loss), derivative instruments, net of tax	2,128	(1,328)	(5,892)
Pension, postretirement and other post-employment benefits
Comprehensive income (loss) before tax	47,562	(39,732)	(32,038)
Other comprehensive income (loss), pension, postretirement and other post-employment benefits, net of tax	47,562	(39,732)	(32,038)
Available-for-sale securities
Comprehensive income (loss) before tax	169	(330)	323
Other comprehensive income (loss), available-for-sale securities, net of tax	169	(330)	323
Total other comprehensive income (loss)	49,859	(41,390)	(37,607)
Total comprehensive income (loss)	$ 387,432	$ (386,005)	$ 196,192

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 325,194	$ 187,492
Short-term investments	14,463	96,765
Restricted cash	1,101	5,953
Trade accounts receivable (net of $0 allowance at December 31, 2021 and December 31, 2020)	324,304	110,869
Other receivables	8,271	3,053
Inventories	156,734	126,008
Other current assets	52,804	58,000
Total current assets	882,871	588,140
Property, plant and equipment
Coal lands and mineral rights	406,822	406,095
Plant and equipment	844,107	734,194
Deferred mine development	402,470	288,693
Property, plant and equipment, gross	1,653,399	1,428,982
Less accumulated depreciation, depletion and amortization	(533,356)	(421,679)
Property, plant and equipment, net	1,120,043	1,007,303
Other assets
Equity investments	15,403	71,783
Fund for asset retirement obligations	20,000
Other noncurrent assets	78,843	55,246
Total other assets	114,246	127,029
Total assets	2,117,160	1,722,472
Current Liabilities
Accounts payable	131,986	103,743
Accrued expenses and other current liabilities	167,304	155,256
Current maturities of debt	223,050	31,097
Total current liabilities	522,340	290,096
Long-term debt	337,623	477,215
Asset retirement obligations	192,672	230,732
Accrued pension benefits	1,300	2,879
Accrued postretirement benefits other than pension	73,565	94,388
Accrued workers' compensation	224,105	244,695
Other noncurrent liabilities	81,689	98,906
Total liabilities	1,433,294	1,438,911
Stockholders' equity
Common stock, $0.01 par value, authorized 300,000 shares, issued 25,481 and 25,323 shares at December 31, 2021 and December 31, 2020, respectively	255	253
Paid-in capital	784,356	767,484
Retained earnings	712,478	378,906
Treasury stock, 10,088 shares at December 31, 2021 and December 31, 2020, respectively, at cost	(827,381)	(827,381)
Accumulated other comprehensive income (loss)	14,158	(35,701)
Total stockholders' equity	683,866	283,561
Total liabilities and stockholders' equity	$ 2,117,160	$ 1,722,472

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Consolidated Balance Sheets
Trade accounts receivable, allowance	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	25,481,000	25,323,000
Treasury stock, shares (in shares)	10,088,000	10,088,000

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net income (loss)	$ 337,573	$ (344,615)	$ 233,799
Adjustments to reconcile to cash from operating activities:
Depreciation, depletion and amortization	120,327	121,552	111,621
Accretion on asset retirement obligations	21,748	19,887	20,548
Deferred income taxes	8	14,430	13,501
Employee stock-based compensation expense	20,539	17,435	21,989
Amortization relating to financing activities	6,549	5,599	3,691
Gain on property insurance recovery related to Mountain Laurel longwall		(23,518)
Loss (Gain) on disposals and divestitures, net	23,276	(3,727)	8,304
Reclamation work completed	(39,047)	(14,357)	(8,832)
Contribution to fund asset retirement obligations	(20,000)
Non-cash asset impairment and restructuring		198,007
Preference Rights Lease Application settlement income			(39,000)
Changes in:
Receivables	(212,950)	63,657	30,713
Inventories	(30,726)	(9,126)	(15,251)
Accounts payable, accrued expenses and other current liabilities	45,547	(46,066)	(28,222)
Income taxes, net	1,820	22,859	38,152
Coal derivative assets and liabilities, including margin account	(3,553)	(1,045)	10,117
Asset retirement obligations	(13,697)	(1,787)	(2,623)
Pension, postretirement and other postemployment benefits	4,571	588	(209)
Other	(23,701)	41,333	21,416
Cash provided by operating activities	238,284	61,106	419,714
Investing activities
Capital expenditures	(245,440)	(285,821)	(266,356)
Minimum royalty payments	(1,186)	(1,248)	(1,249)
Proceeds from disposals and divestitures	21,228	1,007	6,135
Purchases of short-term investments		(120,624)	(205,216)
Proceeds from sales of short-term investments	87,486	158,708	233,074
Investments in and advances to affiliates, net	(3,303)	(1,549)	(5,499)
Proceeds from property insurance recovery related to Mountain Laurel longwall		23,518
Cash used in investing activities	(141,215)	(226,009)	(239,111)
Financing activities
Payments on term loan	(7,895)	(3,000)	(3,000)
Proceeds from equipment financing	19,438	53,611
Proceeds from tax exempt bonds	44,985	53,090
Proceeds from convertible debt		155,250
Purchase of capped call related to convertible debt		(17,543)
Net payments on other debt	(11,195)	(15,922)	(5,373)
Debt financing costs	(2,057)	(9,718)	(0)
Dividends paid	(3,830)	(8,245)	(30,220)
Purchases of treasury stock			(244,998)
Payments for taxes related to net share settlement of equity awards	(4,840)	(2,195)	(8,961)
Proceeds from warrants exercised	1,175
Other			32
Cash provided by (used in) financing activities	35,781	205,328	(292,520)
Increase (decrease) in cash and cash equivalents, including restricted cash	132,850	40,425	(111,917)
Cash and cash equivalents, including restricted cash, beginning of period	193,445	153,020	264,937
Cash and cash equivalents, including restricted cash, end of period	326,295	193,445	153,020
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid during the period for interest	31,568	19,602	16,627
Restricted cash	$ 1,101	5,953
Cash refunded during the period for income taxes, net		$ 37,535	$ 52,272

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Paid-in Capital	Treasury Stock, at cost	Retained Earnings Accumulated Income	Accumulated Other Comprehensive Income (Loss)	Total
Beginning Balance at Dec. 31, 2018	$ 250	$ 717,492	$ (583,883)	$ 527,666	$ 43,296	$ 704,821
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends on common shares				(30,040)		(30,040)
Employee stock-based compensation		21,989				21,989
Issuance of shares of common stock under long-term incentive plan	2					2
Common stock withheld related to net share settlement of equity awards		(8,962)				(8,962)
Warrants exercised		32				32
Purchase of common stock under share repurchase program			(243,498)			(243,498)
Total comprehensive income (loss)				233,799	(37,607)	196,192
Ending Balance at Dec. 31, 2019	252	730,551	(827,381)	731,425	5,689	640,536
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends on common shares				(7,904)		(7,904)
Employee stock-based compensation		17,435				17,435
Common stock withheld related to net share settlement of equity awards	1	(2,196)				(2,195)
Issuance of Convertible Debt, net of fees		39,237				39,237
Purchase of capped call related to convertible debt		(17,543)				(17,543)
Total comprehensive income (loss)				(344,615)	(41,390)	(386,005)
Ending Balance at Dec. 31, 2020	253	767,484	(827,381)	378,906	(35,701)	283,561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends on common shares				(4,001)		(4,001)
Employee stock-based compensation		20,539				20,539
Issuance of shares of common stock under long-term incentive plan	2					2
Common stock withheld related to net share settlement of equity awards		(4,842)				(4,842)
Warrants exercised		1,175				1,175
Total comprehensive income (loss)				337,573	49,859	387,432
Ending Balance at Dec. 31, 2021	$ 255	$ 784,356	$ (827,381)	$ 712,478	$ 14,158	$ 683,866

Consolidated Statements of Stockholders' Equity (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2019
Consolidated Statements of Stockholders' Equity
Purchase of shares of common stock under share repurchase program		2,872,548
Issuance of shares of common stock under long-term incentive plan (in shares)	157,609	172,720

Basis of Presentation

12 Months Ended

Dec. 31, 2021

Basis of Presentation

Basis of Presentation

1. Basis of Presentation

The accompanying consolidated financial statements include the accounts of Arch Resources, Inc. (“Arch Resources”) and its subsidiaries and controlled entities (the “Company”). Unless the context indicates otherwise, the terms “Arch” and the “Company” are used interchangeably in this Annual Report on Form 10-K. The Company’s primary business is the production of metallurgical and thermal coal from underground and surface mines located throughout the United States, for sale to steel producers, utility companies, and industrial accounts both in the United States and around the world. The Company currently operates mining complexes in West Virginia, Wyoming and Colorado. All subsidiaries are wholly-owned. Intercompany transactions and accounts have been eliminated in consolidation.

Accounting Policies

12 Months Ended

Dec. 31, 2021

Accounting Policies

Accounting Policies

2. Accounting Policies

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for financial reporting and U.S. Securities and Exchange Commission regulations.

Accounting Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and revenues and expenses in the accompanying consolidated financial statements and the disclosure of contingent assets and liabilities. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and cash equivalents are stated at cost. Cash equivalents consist of highly-liquid investments with an original maturity of three months or less when purchased and investments in commercial paper which the Company classifies as cash and cash equivalents.

Restricted Cash

Amounts included in restricted cash represent required deposits for a performance bid bond for a potential customer for $1.1 million as of December 31, 2021. Amounts of $6.0 million included in restricted cash held in trust related to the Tax Exempt Bonds as of December 31, 2020.

Accounts Receivable

Accounts receivable are recorded at amounts that are expected to be collected, based on past collection history, the economic environment and specified risks identified in the receivables portfolio.

Inventories

Coal and supplies inventories are valued at the lower of average cost or market. Coal inventory costs include labor, supplies, equipment costs, transportation costs incurred prior to the transfer of title to customers and operating overhead. The costs of removing overburden, called stripping costs, incurred during the production phase of the mine are considered variable production costs and are included in the cost of the coal extracted during the period the stripping costs are incurred.

Investments and Membership Interests in Joint Ventures

Investments and membership interests in joint ventures are accounted for under the equity method of accounting if the Company has the ability to exercise significant influence, but not control, over the entity. The Company’s share of the entity’s income or loss is reflected in “Other operating loss (income), net” in the Consolidated Statements of Operations. Information about investment activity is provided in Note 11 to the Consolidated Financial Statements, “Equity Method Investments and Membership Interests in Joint Ventures.”

Investments in debt securities and marketable equity securities that do not qualify for equity method accounting are classified as available-for-sale and are recorded at their fair values. Unrealized gains and losses on these investments are recorded in other comprehensive income or loss. A decline in the value of an investment that is considered other-than-temporary would be recognized in operating expenses.

Exploration Costs

Costs to acquire permits for exploration activities are capitalized. Drilling and other costs related to locating coal deposits and evaluating the economic viability of such deposits are expensed as incurred.

Prepaid Royalties

Leased mineral rights are often acquired through royalty payments. When royalty payments represent prepayments recoupable against royalties owed on future revenues from the underlying coal, they are recorded as a prepaid asset, with amounts expected to be recouped within one year classified as current. When coal from these leases is sold, the royalties owed are recouped against the prepayment and charged to cost of sales. An impairment charge is recognized for prepaid royalties that are not expected to be recouped.

Property, Plant and Equipment

Plant and Equipment

Plant and equipment were recorded at fair value at emergence during fresh start accounting; subsequent purchases of property, plant and equipment have been recorded at cost. Interest costs incurred during the construction period for major asset additions are capitalized. The Company capitalized $18.6 million and $11.9 million of interest costs during years ended December 31, 2021 and 2020, respectively. Expenditures that extend the useful lives of existing plant and equipment or increase the productivity of the asset are capitalized. The cost of maintenance and repairs that do not extend the useful life or increase the productivity of the asset is expensed as incurred.

Preparation plants and loadouts are depreciated using the units-of-production method over the estimated recoverable reserves, subject to a minimum level of depreciation. Other plant and equipment are depreciated principally using the straight-line method over the estimated useful lives of the assets, limited by the remaining life of the mine. The useful lives of mining equipment, including longwalls, draglines and shovels, range from 1 to 16 years. The useful lives of buildings and leasehold improvements generally range from 3 to 20 years.

Deferred Mine Development

Costs of developing new mines or significantly expanding the capacity of existing mines are capitalized and amortized using the units-of-production method over the estimated recoverable reserves that are associated with the property being benefited. Costs may include construction permits and licenses; mine design; construction of access roads, shafts, slopes and main entries; and removing overburden to access reserves in a new pit. Additionally, deferred mine development includes the asset cost associated with asset retirement obligations. Coal sales revenue related to incidental production during the development phase is recorded as coal sales revenue with an offset to cost of coal sales based on the estimated cost per ton sold for the mine when the asset is in place for its intended use.

Coal Lands and Mineral Rights

Rights to coal reserves may be acquired directly through governmental or private entities. A significant portion of the Company’s coal reserves are controlled through leasing arrangements. Lease agreements are generally long-term in nature (original terms range from 10 to 50 years), and substantially all of the leases contain provisions that allow for automatic extension of the lease term providing certain requirements are met. Leases of mineral reserves and related land leases are exempt from the provisions of the leasing standard.

The net book value of the Company’s coal interests was $259.8 million and $290.3 million at December 31, 2021 and 2020, respectively. Payments to acquire royalty lease agreements and lease bonus payments are capitalized as a cost of the underlying mineral reserves and depleted over the life of proven and probable reserves. Coal lease rights are depleted using the units-of-production method, and the rights are assumed to have no residual value.

The Company currently does not have any future lease bonus payments.

Depreciation, depletion and amortization

The depreciation, depletion and amortization related to long-lived assets is reflected in the Consolidated Statements of Operations as a separate line item. No depreciation, depletion or amortization is included in any other operating cost categories.

Impairment

If facts and circumstances suggest that the carrying value of a long-lived asset or asset group may not be recoverable, the asset or asset group is reviewed for potential impairment. If this review indicates that the carrying amount of the asset will not be recoverable through projected undiscounted cash flows generated by the asset and its related asset group over its remaining life, then an impairment loss is recognized by reducing the carrying value of the asset to its fair value. The Company may, under certain circumstances, idle mining operations in response to market conditions or other factors. Because an idling is not a permanent closure, it is not considered an automatic indicator of impairment. For information on Impairment, see Note 5 to the Consolidated Financial Statements, “Asset impairment and restructuring.”

Deferred Financing Costs

The Company capitalizes costs incurred in connection with new borrowings, the establishment or enhancement of credit facilities and the issuance of debt securities. These costs are amortized as an adjustment to interest expense over the life of the borrowing or term of the credit facility using the effective interest method. Debt issuance costs related to a recognized liability are presented in the balance sheet as a direct reduction from the carrying amount of that liability whereas debt issuance costs related to a credit facility with no balance outstanding are shown as an asset. The unamortized balance of deferred financing costs shown as an asset was $1.2 million at December 31, 2021, with $0.7 million classified as current; the unamortized balance of deferred financing costs shown as an asset at December 31, 2020 was $1.9 million with $0.7 million classified as current. The current amounts are classified within “Other current assets” and the noncurrent amounts are classified within “Other noncurrent assets.” For information on the unamortized balance of deferred financing fees related to outstanding debt, see Note 14 to the Consolidated Financial Statements, “Debt and Financing Arrangements.”

Revenue Recognition

Revenues include sales to customers of coal produced at Company operations and coal purchased from third parties. The Company recognizes revenue at the time risk of loss passes to the customer at contracted amounts. Transportation costs are included in cost of sales and amounts billed by the Company to its customers for transportation are included in revenues. Control of the goods may transfer and revenue may be recognized before, during or subsequent to the period in which final average pricing is determined. For all metallurgical coal sales under average pricing contracts where pricing is not finalized when revenue is recognized, revenue is recorded based on estimated consideration to be received

at the date of the sale with reference to metallurgical coal price assessments. The Company generally retains title to these products until we receive the first contracted payment, which is typically received shortly after loading, solely to manage the credit risk of the amounts due to the Company. This retention of title does not preclude the customer from obtaining control of the product.

Other Operating Loss (Income), net

Other operating loss (income), net in the accompanying Consolidated Statements of Operations reflects income and expense from sources other than physical coal sales, including: contract settlements; royalties earned from properties leased to third parties; income from equity investments (Note 11, “Equity Method Investments and Membership Interests in Joint Ventures”); non-material gains and losses from divestitures and dispositions of assets; and realized gains and losses on derivatives that do not qualify for hedge accounting and are not held for trading purposes (Note 12, “Derivatives”); and land management expenses.

Asset Retirement Obligations

The Company’s legal obligations associated with the retirement of long-lived assets are recognized at fair value at the time the obligations are incurred. Accretion expense is recognized through the expected settlement date of the obligation. Obligations are incurred at the time development of a mine commences for underground and surface mines or construction begins for support facilities, refuse areas and slurry ponds. The obligation’s fair value is determined using a discounted cash flow technique and is based upon permit requirements and various estimates and assumptions that would be used by market participants, including estimates of disturbed acreage, reclamation costs and assumptions regarding equipment productivity. Upon initial recognition of a liability, a corresponding amount is capitalized as part of the carrying value of the related long-lived asset.

The Company reviews its asset retirement obligation at least annually and makes necessary adjustments for permit changes as granted by state authorities and for revisions of estimates of the amount and timing of costs. For ongoing operations, adjustments to the liability result in an adjustment to the corresponding asset. For idle operations, adjustments to the liability are recognized as income or expense in the period the adjustment is recorded. Any difference between the recorded obligation and the actual cost of reclamation is recorded in profit or loss in the period the obligation is settled. See additional discussion in Note 16 to the Consolidated Financial Statements, “Asset Retirement Obligations.”

Loss Contingencies

The Company accrues for cost related to contingencies when a loss is probable and the amount is reasonably determinable. Disclosure of contingencies is included in the financial statements when it is at least reasonably possible that a material loss or an additional material loss in excess of amounts already accrued may be incurred. The amount accrued represents the Company’s best estimate of the loss, or, if no best estimate within a range of outcomes exists, the minimum amount in the range.

Derivative Instruments

The Company generally utilizes derivative instruments to manage exposures to commodity prices and interest rate risk on long-term debt. Derivative financial instruments are recognized on the balance sheet at fair value. Certain coal contracts may meet the definition of a derivative instrument, but because they provide for the physical purchase or sale of coal in quantities expected to be used or sold by the Company over a reasonable period in the normal course of business, they are not recognized on the balance sheet.

Certain derivative instruments are designated as the hedge instrument in a hedging relationship. In a fair value hedge, the Company hedges the risk of changes in the fair value of a firm commitment, typically a fixed-price coal sales contract. Changes in both the hedged firm commitment and the fair value of a derivative used as a hedge instrument in a fair value hedge are recorded in earnings. In a cash flow hedge, the Company hedges the risk of changes in future cash flows related to the underlying item being hedged. Changes in the fair value of the derivative instrument used as a hedge

instrument in a cash flow hedge are recorded in other comprehensive income or loss. Amounts in other comprehensive income or loss are reclassified to earnings when the hedged transaction affects earnings and are classified in a manner consistent with the transaction being hedged. The Company formally documents the relationships between hedging instruments and the respective hedged items, as well as its risk management objectives for hedge transactions.

The Company evaluates the effectiveness of its hedging relationships both at the hedge’s inception and on an ongoing basis. Any ineffective portion of the change in fair value of a derivative instrument used as a hedge instrument in a fair value or cash flow hedge is recognized immediately in earnings. The ineffective portion is based on the extent to which exact offset is not achieved between the change in fair value of the hedge instrument and the cumulative change in expected future cash flows on the hedged transaction from inception of the hedge in a cash flow hedge or the change in the fair value. Ineffectiveness was insignificant for the periods disclosed within.

See Note 12 to the Consolidated Financial Statements, “Derivatives” for further disclosures related to the Company’s derivative instruments.

Fair Value

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly hypothetical transaction between market participants at a given measurement date. Valuation techniques used must maximize the use of observable inputs and minimize the use of unobservable inputs. See Note 17 to the Consolidated Financial Statements, “Fair Value Measurements” for further disclosures related to the Company’s recurring fair value estimates.

Income Taxes

Deferred income taxes are provided for temporary differences arising from differences between the financial statement and tax basis of assets and liabilities existing at each balance sheet date using enacted tax rates anticipated to be in effect when the related taxes are expected to be paid or recovered. A valuation allowance is established if it is more likely than not that a deferred tax asset will not be realized. Management reassesses the ability to realize its deferred tax assets annually in the fourth quarter or when circumstances indicate that the ability to realize deferred tax assets has changed. In determining the need for a valuation allowance, the Company considers projected realization of tax benefits based on expected levels of future taxable income, available tax planning strategies and the reversal of temporary differences.

Benefits from tax positions that are uncertain are not recognized unless the Company concludes that it is more likely than not that the position would be sustained in a dispute with taxing authorities, should the dispute be taken to the court of last resort. The Company would measure any such benefit at the largest amount of benefit that is greater than 50% likely of being realized upon settlement with taxing authorities.

See Note 15 to the Consolidated Financial Statements, “Taxes” for further disclosures about income taxes.

Benefit Plans

The Company has non-contributory defined benefit pension plans covering most of its salaried and hourly employees. On January 1, 2015 the Company’s cash balance and excess pension plans were amended to freeze new service credits for any new or active employees. The Company also currently provides certain postretirement medical and life insurance coverage for eligible employees. The cost of providing these benefits is determined on an actuarial basis and accrued over the employees’ period of active service.

The Company recognizes the overfunded or underfunded status of these plans as determined on an actuarial basis on the balance sheet and the changes in the funded status are recognized in other comprehensive income. The Company amortizes actuarial gains and losses over the remaining service attribution periods of the employees using the corridor method. See Note 21 to the Consolidated Financial Statements, “Employee Benefit Plans” for additional disclosures relating to these obligations.

Stock-Based Compensation

The compensation cost of all stock-based awards is determined based on the grant-date fair value of the award, and is recognized over the requisite service period. The grant-date fair value of option awards and restricted stock awards with a market condition is determined using a Monte Carlo simulation. Compensation cost for an award with performance conditions is accrued if it is probable that the conditions will be met. The Company accounts for forfeitures as they occur. See further discussion in Note 19 to the Consolidated Financial Statements, “Stock-Based Compensation and Other Incentive Plans.”

Recently Adopted Accounting Guidance

In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." The amendments provide optional guidance for a limited time to ease the potential burden in accounting for reference rate reform. The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. We are currently evaluating our contracts and the optional expedients provided by the new standard.

In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes.” ASU 2019-12 eliminates certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The ASU is effective for public companies for fiscal years beginning after December 15, 2020, and interim periods therein with early adoption permitted. The Company adopted this ASU with minimal impact to the Company’s financial statements.

Recently Adopted Accounting Guidance Not Yet Effective

In August 2020, the FASB issued ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own Equity (Subtopic 815-40)—Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. For convertible instruments with conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital, the embedded conversion features no longer are separated from the host contract. ASU 2020-06 also removes certain conditions that should be considered in the derivatives scope exception evaluation under Subtopic 815-40, Derivatives and Hedging—Contracts in Entity’s Own Equity, and clarify the scope and certain requirements under Subtopic 815-40. In addition, ASU 2020-06 improves the guidance related to the disclosures and earnings-per-share (EPS) for convertible instruments and contract in entity’s own equity. ASU 2020-06 is effective for public business entities that meet the definition of a Securities and Exchange Commission (SEC) filer, excluding entities eligible to be smaller reporting companies as defined by the SEC, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Upon adoption using the modified retrospective approach in the first quarter of 2022, the Company will no longer have a separate liability and equity component for the Convertible Debt. The total Convertible Debt of $155.3 million will be classified as debt on the Company’s Consolidated Financial Statements. Additionally, this guidance will decrease interest expense and will require the application of the “if-converted” method to calculate the impact of convertible instruments on diluted earnings per share.

Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss).

Accumulated Other Comprehensive Income (Loss)

3. Accumulated Other Comprehensive Income (Loss)

The following items are included in accumulated other comprehensive income:


			Pension,
			Postretirement				Accumulated
			and Other Post-				Other
	Derivative		Employment		Available-for-		Comprehensive
	Instruments		Benefits		Sale Securities		Income (loss)

	(In thousands)
January 1, 2020	$	(2,564)	$	8,273	$	(20)	$	5,689
Unrealized gains (losses)		(3,076)		(38,533)		(66)		(41,675)
Amounts reclassified from accumulated other comprehensive income (loss)		1,749		(1,199)		(265)		285
Balance at December 31, 2020	$	(3,891)	$	(31,459)	$	(351)	$	(35,701)
Unrealized gains (losses)		200		47,159		191		47,550
Amounts reclassified from accumulated other comprehensive income (loss)		1,928		403		(22)		2,309
Balances at December 31, 2021	$	(1,763)	$	16,103	$	(182)	$	14,158

The following amounts were reclassified out of accumulated other comprehensive income (loss) during the respective periods:


	December 31,		December 31,		Line Item in the Consolidated
Details About AOCI Components	2021		2020		Statements of Operations

Coal hedges	$	—	$	392	Revenues
Interest rate hedges		(1,928)		(2,141)	Interest expense
		—		—	Provision for (benefit from) income taxes
	$	(1,928)	$	(1,749)	Net of tax

Pension, postretirement and other post-employment benefits
Amortization of actuarial gains (losses), net ¹	$	(2,361)	$	191	Non-service related pension and postretirement benefit (costs) credits
Amortization of prior service credits		190		112	Non-service related pension and postretirement benefit (costs) credits
Pension settlement		1,768		896	Non-service related pension and postretirement benefit (costs) credits
		—		—	Provision for (benefit from) income taxes
	$	(403)	$	1,199	Net of tax

Available-for-sale securities ²	$	22	$	265	Interest and investment income
		—		—	Provision for (benefit from) income taxes
	$	22	$	265	Net of tax

¹ Production-related benefits and workers’ compensation costs are included in costs to produce coal.

² The gains and losses on sales of available-for-sale-securities are determined on a specific identification basis.

Divestitures

12 Months Ended

Dec. 31, 2021

Divestitures

Divestitures

4. Divestitures

In November 2021, the Company sold its 49.5% ownership in Knight Hawk Holdings, LLC (Knight Hawk”) to CBR, LLC. The Company will receive total proceeds of $38 million which consist of $20 million received in the fourth quarter of 2021 and a three year note receivable for $18 million with monthly payments of $0.5 million. The sale resulted in a non-cash loss of $24.2 million that was recorded in “Loss (Gain) on divestitures” as of December 31, 2021. See Note 11 to the Consolidated Financial Statements, “Equity Method Investments and Membership Interests in Joint Venture” for further disclosures about the divestiture.

In December 2020, the Company sold its Viper mine in the Illinois basin to Knight Hawk Holdings, LLC in exchange for an additional 1.5% ownership interest in Knight Hawk. The sale resulted in an increase in the Company’s ownership to 49.5% and a gain of $0.1 million was recorded which is reflected within the line item, “Loss (Gain) on divestitures,” on the Consolidated Statements of Operations. See Note 11 to the Consolidated Financial Statements, “Equity Method Investments and Membership Interests in Joint Venture” for further disclosures about the divestiture.

During the second quarter of 2020, various Dal-Tex and Briar Branch properties in West Virginia were sold to Condor Holdings, LLC. No consideration was received for the sale and a gain of $1.4 million was recorded representing the net liabilities sold, and is reflected within the line item, “Loss (Gain) on divestitures,” on the Consolidated Statements of Operations.

On December 13, 2019, the Company sold Coal-Mac LLC, an operating mine complex within the Company’s Other Thermal segment to Condor Holdings, LLC. The Company received $2.3 million of proceeds offset by $0.2 million in closing fees; and recorded a loss of $9.0 million which is reflected within the line, “Loss (Gain) on divestitures,” on the Consolidated Statements of Operations.

On September 14, 2017, the Company sold Lone Mountain Processing, LLC and two idled mining companies, Cumberland River Coal LLC and Powell Mountain Energy LLC to Revelation Energy LLC, and recorded a gain on the transaction in that year of $21.3 million. Under the terms of the purchase agreement, Revelation assumed certain traumatic workers compensation claims and pneumoconiosis (occupational disease) benefits. On July 1, 2019, Blackjewel LLC and four affiliates, including Revelation Energy LLC filed for Chapter 11 bankruptcy. As a result of the bankruptcy, the Company recorded a $4.3 million charge for these claims as of September 30, 2019, which is reflected within the line, “Loss (Gain) on divestitures,” on the Consolidated Statements of Operations.

Asset Impairment and Restructuring

12 Months Ended

Dec. 31, 2021

Asset Impairment and Restructuring

Asset Impairment and Restructuring

5. Asset impairment and restructuring

During the third quarter of 2020, the Company determined that indicators of impairment existed with respect to certain of its thermal long-lived assets. As a result, the Company recorded impairment charges of $51.8 million related to the Coal Creek Mine, $33.5 million related to the Viper Mine, $41.6 million related to the West Elk Mine, and $36.2 million related to the Company’s equity method investment in Knight Hawk Holdings, LLC.

In the fourth quarter of 2020, the Company recorded additional charges of $32.8 million related to the

Company’s Coal Creek Mine due to accelerating the mine closing date and the associated reclamation work to be

performed and $10.0 million related to a land lease obligation from a prior equity investment.

The Company recorded $13.4 million of employee severance expense related to a voluntary separation plan during the year ended December 31, 2020. During the first and second quarters of 2020, 254 employees from the Company’s thermal operations and the corporate staff accepted the voluntary separation package. No amounts related to the employee severance expense were incurred for year ended December 31, 2021. As of December 31, 2021, there were no indicators of impairment.

Joint Venture with Peabody Energy

12 Months Ended

Dec. 31, 2021

Joint Venture with Peabody Energy

Joint Venture with Peabody Energy

6. Joint Venture with Peabody Energy

The Company incurred expenses of $16.1 million during the year ended December 31, 2020, associated with the regulatory approval process related to the proposed joint venture with Peabody that was terminated jointly by the parties due to the Federal Trade Commission blocking the joint venture during the third quarter of 2020. No amounts related to the joint venture were incurred for the year ended December 31, 2021.

Gain on Property Insurance Recovery Related to Mountain Laurel Longwall

12 Months Ended

Dec. 31, 2021

Gain on Property Insurance Recovery Related to Mountain Laurel Longwall

Gain on Property Insurance Recovery Related to Mountain Laurel Longwall

7. Gain on Property Insurance Recovery Related to Mountain Laurel Longwall

The Company recorded a $23.5 million gain related to a property insurance recovery on the longwall shields at its Mountain Laurel operation during the year ended December 31, 2020. As a result of geologic conditions in the final longwall panel, Mountain Laurel was unable to recover 123 of the longwall system’s 176 hydraulic shields. No amounts related to the property insurance recovery were incurred for the year ended December 31, 2021.

Preference Rights Lease Application Settlement Income

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies

Preference Rights Lease Application Settlement Income

8. Preference Rights Lease Application Settlement Income

The Company recorded a $39.0 million gain during the third quarter of 2019 related to a settlement with the United States Department of Interior over a long-standing dispute, dating back to the 1970’s, on the valuation and disposition of

Preference Rights Lease Application that Arch controlled in northwestern New Mexico with a joint venture partner. As part of the settlement, Arch received $67.0 million in the form of royalty credits on its federal coal leases which was used to settle 50% of the Company’s monthly royalty obligations. Additionally, as part of the settlement, Arch made a one-time payment of $27.0 million during October 2019 to its partner in the venture for its ownership interest in the underlying mineral reserves, as well as paying $1.0 million in closing fees.

The Company utilized royalty credits of $17.7 million during the year ended December 31, 2021, $36.0 million during the year ended December 31, 2020 and $13.3 million during the year ended December 31, 2019.

Inventories

12 Months Ended

Dec. 31, 2021

Inventories

Inventories

9. Inventories

Inventories consist of the following:


	December 31,		December 31,
	2021		2020

	(In thousands)
Coal	$	75,653	$	49,436
Repair parts and supplies		81,081		76,572
	$	156,734	$	126,008

The repair parts and supplies are stated net of an allowance for slow-moving and obsolete inventories of $2.3 million at December 31, 2021 and $0.6 million at December 31, 2020.

Investments in Available-for-Sale Securities

12 Months Ended

Dec. 31, 2021

Investments in Available-for-Sale Securities

Investments in Available-for-Sale Securities

10. Investments in Available-for-Sale Securities

The Company has invested in marketable debt securities, primarily highly liquid U.S Treasury securities and investment grade corporate bonds. These investments are held in the custody of a major financial institution. These securities are classified as available-for-sale securities and, accordingly, the unrealized gains and losses are recorded through other comprehensive income.

The Company’s investments in available-for-sale marketable securities are as follows:


	December 31, 2021

			Gross					Allowance
			Unrealized					for - Credit	Fair
	Cost Basis		Gains		Losses			Losses	Value

	(In thousands)
Available-for-sale:
U.S. government and agency securities	$	6,074	$	—	$	(71)	$	—	$	6,003
Corporate notes and bonds		8,571		—		(111)		—		8,460
Total Investments	$	14,645	$	—	$	(182)	$	—	$	14,463


	December 31, 2020

			Gross					Allowance
			Unrealized					for - Credit	Fair
	Cost Basis		Gains			Losses		Losses	Value

	(In thousands)
Available-for-sale:
U.S. government and agency securities	$	57,299	$	11	$	(86)	$	—	$	57,224
Corporate notes and bonds		39,817		1		(277)		—		39,541
Total Investments	$	97,116	$	12	$	(363)	$	—	$	96,765

The aggregate fair value of investments with unrealized losses that had been owned for less than a year was $0.0 million and $45.3 million at December 31, 2021 and 2020, respectively. The aggregate fair value of investments with unrealized losses that have been owned for over a year was $14.5 million and $8.1 million at December 31, 2021 and 2020, respectively.

The debt securities outstanding at December 31, 2021 have maturity dates ranging through the first quarter of 2022. The Company classifies its investments as current based on the nature of the investments and their availability to provide cash for use in current operations, if needed.

Equity Method Investments and Membership Interests in Joint Ventures

12 Months Ended

Dec. 31, 2021

Equity Method Investments and Membership Interests in Joint Ventures

Equity Method Investments and Membership Interests in Joint Ventures

11. Equity Method Investments and Membership Interests in Joint Ventures

The Company accounts for its investments and membership interests in joint ventures under the equity method of accounting if the Company has the ability to exercise significant influence, but not control, over the entity. Equity method investments are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the investments may not be recoverable.

Below are the equity method investments reflected in the consolidated balance sheets:


	Knight
(In thousands)	Hawk		DTA		Total

December 31, 2019	$	90,211	$	15,377	$	105,588
Advances to (distributions from) affiliates, net		(4,235)		1,549		(2,686)
Equity in comprehensive income (loss)		4,576		(1,228)		3,348
Additional interest in Knight Hawk		1,700		—		1,700
Impairment of equity investment		(36,167)		—		(36,167)
December 31, 2020	$	56,085	$	15,698	$	71,783
Advances to (distributions from) affiliates, net		(7,886)		3,303		(4,583)
Equity in comprehensive income (loss)		14,026		(3,598)		10,428
Sale of Equity investment		(62,225)		—		(62,225)

December 31, 2021	$	—	$	15,403	$	15,403

In November 2021, the Company sold its 49.5% ownership in Knight Hawk Holdings, LLC (Knight Hawk”) to CBR, LLC. The Company received total proceeds of $38 million which consist of $20 million in the fourth quarter of 2021 and a three year note receivable for $18 million with monthly payments of $0.5 million (the first monthly installment was received in the fourth quarter of 2021). The sale resulted in a non-cash loss of $24.2 million that was recorded in “Loss (Gain) on divestitures” as of December 31, 2021.

In December 2020, the Company sold its Viper mine to Knight Hawk Holdings, LLC (“Knight Hawk”) in exchange for an additional 1.5% ownership interest in Knight Hawk. The sale resulted in an increase in the Company’s ownership to 49.5%.

The Company holds a 35% general partnership interest in Dominion Terminal Associates LLP (“DTA”), which is accounted for under the equity method. DTA operates a ground storage-to-vessel coal transloading facility in Newport News, Virginia for use by the partners. Under the terms of a throughput and handling agreement with DTA, each partner is charged its share of cash operating and debt-service costs in exchange for the right to use the facility’s loading capacity and is required to make periodic cash advances to DTA to fund such costs.

The Company is not required to make any future contingent payments related to development financing for any of its equity investees.

Derivatives

12 Months Ended

Dec. 31, 2021

Derivatives

Derivatives

12. Derivatives

Interest rate risk management

The Company has entered into interest rate swaps to reduce the variability of cash outflows associated with interest payments on its variable rate term loan. These swaps have been designated as cash flow hedges. For additional information on these arrangements, see Note 14 to the Consolidated Financial Statements, “Debt and Financing Arrangements.”

Diesel fuel price risk management

The Company is exposed to price risk with respect to diesel fuel purchased for use in its operations. The Company anticipates purchasing approximately 40 to 45 million gallons of diesel fuel for use in its operations during 2022. To protect the Company’s cash flows from increases in the price of diesel fuel for its operations, the Company purchased heating oil call options. At December 31, 2021, the Company had protected the price of expected diesel fuel purchases for 2022 with approximately 8 million gallons of heating oil call options with an average strike price of $2.38 per gallon. These positions are not designated as hedges for accounting purposes, and therefore, changes in the fair value are recorded immediately to earnings.

Coal risk management positions

The Company may sell or purchase forward contracts, swaps and options in the over-the-counter coal market in order to manage its exposure to coal prices. The Company has exposure to the risk of fluctuating coal prices related to forecasted sales or purchases of coal or to the risk of changes in the fair value of a fixed price physical sales contract. Certain derivative contracts may be designated as hedges of these risks.

At December 31, 2021, the Company held derivatives for risk management purposes that are expected to settle in the following years:


(Tons in thousands)		2022
Coal sales		165
Coal purchases		33

Tabular derivatives disclosures

The Company has master netting agreements with all of its counterparties which allow for the settlement of contracts in an asset position with contracts in a liability position in the event of default or termination. Such netting arrangements reduce the Company’s credit exposure related to these counterparties. For classification purposes, the Company records the net fair value of all the positions with a given counterparty as a net asset or liability in the consolidated balance sheets. The amounts shown in the table below represent the fair value position of individual contracts, and not the net position presented in the accompanying Consolidated Balance Sheets.

The fair value and location of derivatives reflected in the accompanying Consolidated Balance Sheets are as follows:


	December 31, 2021						December 31, 2020
Fair Value of Derivatives	Asset		Liability				Asset		Liability
(In thousands)	Derivative		Derivative				Derivative		Derivative
Derivatives Designated as Hedging Instruments
Coal	$	—	$	—			$	—	$	—

Derivatives Not Designated as Hedging Instruments
Heating oil -- diesel purchases		1,219		—				237		—
Coal -- held for trading purposes		—		—				1,914		(1,595)
Coal -- risk management		4,885		(2,203)				1,094		(804)
Total	$	6,104	$	(2,203)			$	3,245	$	(2,399)
Total derivatives	$	6,104	$	(2,203)			$	3,245	$	(2,399)
Effect of counterparty netting		(1,890)		1,890				(2,392)		2,392
Net derivatives as classified in the balance sheets	$	4,214	$	(313)	$	3,901	$	853	$	(7)	$	846


		December 31,		December 31,
		2021		2020
Net derivatives as reflected on the balance sheets (in thousands)
Heating Oil and coal	Other current assets	$	4,214	$	853
Coal	Accrued expenses and other current liabilities		(313)		(7)
		$	3,901	$	846

The Company had a current asset representing cash collateral posted to a margin account for derivative positions primarily related to coal derivatives of $2.8 million at December 31, 2021 and a current asset of $1.4 million at December 31, 2020 representing cash collateral owed to a margin account, respectively. These amounts are not included with the derivatives presented in the table above and are included in “accrued expenses and other current liabilities” and “other current assets” in the accompanying Consolidated Balance Sheets.

The effects of derivatives on measures of financial performance are as follows:

Derivatives used in Cash Flow Hedging Relationships (in thousands)

For the noted periods,


		Gain (Loss) Recognized in Other Comprehensive
		Income (Effective Portion)
		Year Ended		Year Ended		Year Ended
		December 31,		December 31,		December 31,
		2021		2020		2019
Coal sales	⁽¹⁾	$	—	$	500	$	10,249
Coal purchases	⁽²⁾		—		(496)		(1,231)
		$	—	$	4	$	9,018


	Gains (Losses) Reclassified from Other
	Comprehensive Income into Income
	(Effective Portion)
	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019
Coal sales	$	—	$	(1,850)	$	10,167
Coal purchases		—		1,458		(686)
	$	—	$	(392)	$	9,481

No ineffectiveness or amounts excluded from effectiveness testing relating to the Company’s cash flow hedging relationships were recognized in the results of operations in the respective periods.

Derivatives Not Designated as Hedging Instruments (in thousands)

For the noted periods,


		Gain (Loss) Recognized
		Year Ended		Year Ended		Year Ended
		December 31,		December 31,		December 31,
		2021		2020		2019
Coal trading— realized and unrealized	⁽³⁾	$	—	$	222	$	(1,013)
Coal risk management— unrealized	⁽³⁾		2,392		(5,517)		19,713
Natural gas trading — realized and unrealized	⁽³⁾		—		76		(99)
Change in fair value of coal derivatives and coal trading activities, net total		$	2,392	$	(5,219)	$	18,601

Coal risk management — realized	⁽⁴⁾	$	(27,464)	$	9,258	$	487
Heating oil — diesel purchases	⁽⁴⁾	$	—	$	(558)	$	(2,291)

Location in income statement:

(1)

— Revenues

(2)

— Cost of sales

(3)

— Change in fair value of coal derivatives and coal trading activities, net

(4)

— Other operating income, net

Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2021

Accrued Expenses and Other Current Liabilities.

Accrued Expenses and Other Current Liabilities

13. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following:


	December 31,		December 31,
	2021		2020

	(In thousands)
Payroll and employee benefits	$	55,898	$	39,443
Taxes other than income taxes		61,582		56,232
Interest		3,439		2,795
Workers’ compensation		14,202		15,259
Asset retirement obligations		21,781		27,032
Other		10,402		14,495
	$	167,304	$	155,256

Debt and Financing Arrangements

12 Months Ended

Dec. 31, 2021

Debt and Financing Arrangements

Debt and Financing Arrangements

14. Debt and Financing Arrangements


	December 31,		December 31,
	2021		2020

	(In thousands)
Term loan due 2024 ($280.9 million face value)	$	280,353	$	288,033
Tax Exempt Bonds ($98.1 million face value)		98,075		53,090
Convertible Debt ($155.3 million face value)		121,617		115,367
Other		70,836		62,695
Debt issuance costs		(10,208)		(10,873)
		560,673		508,312
Less: current maturities of debt		223,050		31,097
Long-term debt	$	337,623	$	477,215

Term Loan Facility

In 2017, the Company entered into a senior secured term loan credit agreement in an aggregate principal amount of $300 million (the “Term Loan Debt Facility”) with Credit Suisse AG, Cayman Islands Branch, as administrative agent and collateral agent, and the other financial institutions from time to time party thereto (collectively, the “Lenders”). The Term Loan Debt Facility was issued at 99.50% of the face amount and will mature on March 7, 2024. The term loans provided under the Term Loan Debt Facility (the “Term Loans”) are subject to quarterly principal amortization payments in an amount equal to $0.8 million. The interest rate on the Term Loan Debt Facility is, at the option of Arch Resources, either (i) LIBOR plus an applicable margin of 2.75%, subject to a 1.00% LIBOR floor, or (ii) a base rate plus an applicable margin of 1.75%.

The Term Loan Debt Facility is guaranteed by all existing and future wholly owned domestic subsidiaries of the Company (collectively, the “Subsidiary Guarantors” and, together with Arch Resources, the “Loan Parties”), subject to customary exceptions, and is secured by first priority security interests on substantially all assets of the Loan Parties, including 100% of the voting equity interests of directly owned domestic subsidiaries and 65% of the voting equity interests of directly owned foreign subsidiaries, subject to customary exceptions.

The Company has the right to prepay Term Loans at any time and from time to time in whole or in part without premium or penalty, upon written notice, except that any prepayment of Term Loans that bear interest at the LIBOR Rate other than at the end of the applicable interest periods therefor shall be made with reimbursement for any funding losses and redeployment costs of the Lenders resulting therefrom.

The Term Loan Debt Facility is subject to certain usual and customary mandatory prepayment events, including 100% of net cash proceeds of (i) debt issuances (other than debt permitted to be incurred under the terms of the New Term Loan Debt Facility) and (ii) non-ordinary course asset sales or dispositions, subject to customary thresholds, exceptions and reinvestment rights.

The Term Loan Debt Facility contains customary affirmative covenants and representations.

The Term Loan Debt Facility also contains customary negative covenants, which, among other things, and subject to certain exceptions, include restrictions on (i) indebtedness, (ii) liens, (iii) liquidations, mergers, consolidations and acquisitions, (iv) disposition of assets or subsidiaries, (v) affiliate transactions, (vi) creation or ownership of certain subsidiaries, partnerships and joint ventures, (vii) continuation of or change in business, (viii) restricted payments, (ix) prepayment of subordinated and junior lien indebtedness, (x) restrictions in agreements on dividends, intercompany loans and granting liens on the collateral, (xi) loans and investments, (xii) sale and leaseback transactions, (xiii) changes in organizational documents and fiscal year and (xiv) transactions with respect to bonding subsidiaries. The Term Loan Debt Facility does not contain any financial maintenance covenant.

The Term Loan Debt Facility contains customary events of default, subject to customary thresholds and exceptions, including, among other things, (i) nonpayment of principal and nonpayment of interest and fees, (ii) a material inaccuracy of a representation or warranty at the time made, (iii) a failure to comply with any covenant, subject to customary grace periods in the case of certain affirmative covenants, (iv) cross-events of default to indebtedness of at

least $50 million, (v) cross-events of default to surety, reclamation or similar bonds securing obligations with an aggregate face amount of at least $50 million, (vi) uninsured judgments in excess of $50 million, (vii) any loan document shall cease to be a legal, valid and binding agreement, (viii) uninsured losses or proceedings against assets with a value in excess of $50 million, (ix) certain ERISA events, (x) a change of control or (xi) bankruptcy or insolvency proceedings relating to the Company or any material subsidiary of the Company.

At December 31, 2021, the Company agreed to repurchase $69.7 million of the Term Loans before year end that settled in 2022. This amount is included in current maturities of debt on the Company’s Consolidated Balance Sheet.

Accounts Receivable Securitization Facility

On September 30, 2020, the Company amended and extended its existing trade accounts receivable securitization facility provided to Arch Receivable Company, LLC, a special-purpose entity that is a wholly owned subsidiary of Arch Resources (“Arch Receivable”) (the “Securitization Facility”), which supports the issuance of letters of credit and requests for cash advances. The amendment to the Securitization Facility reduced the size of the facility from $160 million to $110 million of borrowing capacity and extended the maturity date to September 29, 2023.

Under the Securitization Facility, Arch Receivable, Arch Resources and certain of Arch Resources’s subsidiaries party to the Securitization Facility have granted to the administrator of the Securitization Facility a first priority security interest in eligible trade accounts receivable generated by such parties from the sale of coal and all proceeds thereof. As of December 31, 2021, letters of credit totaling $67.5 million were outstanding under the facility with $42.5 million available for borrowings.

Inventory-Based Revolving Credit Facility

On September 30, 2020, Arch Resources amended the senior secured inventory-based revolving credit facility in an aggregate principal amount of $50 million (the “Inventory Facility”) with Regions Bank (“Regions”) as administrative agent and collateral agent, as lender and swingline lender (in such capacities, the “Lender”) and as letter of credit issuer. Availability under the Inventory Facility is subject to a borrowing base consisting of (i) 85% of the net orderly liquidation value of eligible coal inventory, plus (ii) the lesser of (x) 85% of the net orderly liquidation value of eligible parts and supplies inventory and (y) 35% of the amount determined pursuant to clause (i), plus (iii) 100% of Arch Resources’s Eligible Cash (defined in the Inventory Facility), subject to reduction for reserves imposed by Regions.

The amendment of the Inventory Facility extended the maturity of the facility to September 30, 2023; eliminated the provision that accelerated maturity upon Liquidity (as defined in the Inventory Facility) falling below a specified level; and reduced the minimum Liquidity requirement from $175 million to $100 million. Additionally, the amendment included provisions that reduce the advance rates for coal inventory and parts and supplies, depending on “Liquidity” as defined as of any date of determination, the sum of, without duplication, (a) unrestricted cash or Permitted Investments as of such date of the Parent and its Subsidiaries (other than the Securitization Subsidiaries and Bonding Subsidiaries) that are not Foreign Subsidiaries, (b) withdrawable funds from brokerage accounts of Borrowers as of such date, (c) Availability as of such date, and (d) any unused commitments that are available to be drawn as of such date by the Parent pursuant to the terms of any Permitted Receivables Financing.

Revolving loan borrowings under the Inventory Facility bear interest at a per annum rate equal to, at the option of Arch Resources, either the base rate or the London interbank offered rate plus, in each case, a margin ranging from 2.50% to 3.50% (in the case of LIBOR loans) subject to a 0.75% LIBOR floor, and 1.50% to 2.50% (in the case of base rate loans) determined using a Liquidity-based grid. Letters of credit under the Inventory Facility are subject to a fee in an amount equal to the applicable margin for LIBOR loans, plus customary fronting and issuance fees.

All existing and future direct and indirect domestic subsidiaries of Arch Resources, subject to customary exceptions, will either constitute co-borrowers under or guarantors of the Inventory Facility (collectively with Arch Resources, the “Loan Parties”). The Inventory Facility is secured by first priority security interests in the ABL Priority Collateral (defined in the Inventory Facility) of the Loan Parties and second priority security interests in substantially all other

assets of the Loan Parties, subject to customary exceptions (including an exception for the collateral that secures the Securitization Facility).

Arch Resources has the right to prepay borrowings under the Inventory Facility at any time and from time to time in whole or in part without premium or penalty, upon written notice, except that any prepayment of such borrowings that bear interest at the LIBOR rate other than at the end of the applicable interest periods therefore shall be made with reimbursement for any funding losses and redeployment costs of the Lender resulting therefrom.

The Inventory Facility is subject to certain usual and customary mandatory prepayment events, including non-ordinary course asset sales or dispositions, subject to customary thresholds, exceptions (including exceptions for required prepayments under Arch Resources’s term loan facility) and reinvestment rights.

The Inventory Facility contains certain customary affirmative and negative covenants; events of default, subject to customary thresholds and exceptions; and representations, including certain cash management and reporting requirements that are customary for asset-based credit facilities. The Inventory Facility also includes a requirement to maintain Liquidity equal to or exceeding $100 million at all times. As of December 31, 2021, letters of credit totaling $27.7 million were outstanding under the facility with $6.4 million available for borrowings.

Equipment Financing

On March 4, 2020, the Company entered into an equipment financing arrangement accounted for as debt. The Company received $53.6 million in exchange for conveying an interest in certain equipment in operation at its Leer Mine and entered into a master lease arrangement for that equipment. The financing arrangement contains customary terms and events of default and provides for 48 monthly payments with an average interest rate of 6.34% maturing on March 4, 2024. Upon maturity, all interests in the subject equipment will revert back to the Company.

On July 29, 2021, the Company entered into an additional equipment financing arrangement accounted for as debt. The Company received $23.5 million in exchange for conveying an interest in certain equipment in operation at its Powder River Basin operations and entered into a master lease arrangement for that equipment. The financing arrangement contains customary terms and events of default and provides for 42 monthly payments with an average implied interest rate of 7.35% maturing on February 1, 2025. Upon maturity, the Company will have the option to purchase the equipment.

Tax Exempt Bonds

On July 2, 2020, the West Virginia Economic Development Authority (the “Issuer”) issued $53.1 million aggregate principal amount of Solid Waste Disposal Facility Revenue Bonds (Arch Resources Project), Series 2020 (the “2020 Tax Exempt Bonds”) pursuant to an Indenture of Trust dated as of June 1, 2020 (as amended to date, the “Indenture of Trust”) between the Issuer and Citibank, N.A., as trustee (the “Trustee”). On March 4, 2021, the Issuer issued an additional $45.0 million of Series 2021 Tax Exempt Bonds (the “2021 Tax Exempt Bonds” and together with the 2020 Tax Exempt Bonds, the “Tax Exempt Bonds”). The proceeds of the Tax Exempt Bonds were loaned to the Company pursuant to a Loan Agreement dated as of June 1, as supplemented by a First Amendment to Loan Agreement dated as of March 1, 2021 (collectively, the “Loan Agreement”), each between the Issuer and the Company. The Tax Exempt Bonds are payable solely from payments to be made by the Company under the Loan Agreement as evidenced by a Note from the Company to the Trustee. The proceeds of the Tax Exempt Bonds were used to finance certain costs of the acquisition, construction, reconstruction, and equipping of solid waste disposal facilities at the Company’s Leer South development, and for capitalized interest and certain costs related to issuance of the Tax Exempt Bonds.

The Tax Exempt Bonds will bear interest payable each January 1 and July 1, and have a final maturity of July 1, 2045; however, the Tax Exempt Bonds are subject to mandatory tender on July 1, 2025 at a purchase price equal to 100% of the principal amount of the Tax Exempt Bonds, plus accrued interest to July 1, 2025. The 2020 Tax Exempt Bonds and 2021 Tax Exempt Bonds bear interest of 5% and 4.125%, respectively.

The Tax Exempt Bonds are subject to redemption (i) in whole or in part at any time on or after January 1, 2025 at the option of the Issuer, upon the Company’s direction at a redemption price of par, plus interest accrued to the redemption date; and (ii) at par plus interest accrued to the redemption date from certain excess Tax Exempt Bonds proceeds as further described in the Indenture of Trust.

The Company’s obligations under the Loan Agreement are (i) except as otherwise described below, secured by first priority liens on and security interests in substantially all of the Company’s and Subsidiary Guarantors’ real property and other assets, subject to certain customary exceptions and permitted liens, and in any event excluding accounts receivable and inventory; and (ii) jointly and severally guaranteed by the Subsidiary Guarantors, subject to customary exceptions.

The collateral securing the Company’s obligations under the Loan Agreement is substantially the same as the collateral securing the obligations under the Term Loan Debt Facility other than with respect to variances in certain real property collateral. The real property securing the Company’s obligations under the Loan Agreement includes a subset of the real property collateral securing the obligations under the Term Loan Debt Facility and includes only mortgages on substantially all of the Company’s revenue generating real property and assets.

The Loan Agreement contains certain affirmative covenants and representations, including but not limited to: (i) maintenance of a rating on the Tax Exempt Bonds; (ii) maintenance of proper books of records and accounts; (iii) agreement to add additional guarantors to guarantee the obligations under the Loan Agreement in certain circumstances; (iv) procurement of customary insurance; and (v) preservation of legal existence and certain rights, franchises, licenses and permits. The Loan Agreement also contains certain customary negative covenants, which, among other things, and subject to certain exceptions, include restrictions on (i) release of collateral securing the Company’s obligations under the Loan Agreement; (ii) mergers and consolidations and disposition of assets, and (iii) restrictions on actions that may jeopardize the tax-exempt status of the Tax Exempt Bonds.

The Loan Agreement contains customary events of default, subject to customary thresholds and exceptions, including, among other things: (i) nonpayment of principal, purchase price, interest and other fees (subject to certain cure periods); (ii) bankruptcy or insolvency proceedings relating to us; (iii) material inaccuracy of a representation or warranty at the time made; (iv) cross-events of default to indebtedness of at least $50 million; and (v) cross defaults to the Indenture of Trust, the guaranty related to the Tax Exempt Bonds or any related security documents.

As of December 31, 2021, the Company has utilized the total Tax Exempt Bond proceeds.

Convertible Debt

On November 3, 2020, the Company issued $155.3 million in aggregate principal amount of 5.25% convertible senior notes due 2025 (“Convertible Notes ” or “Convertible Debt”). The net proceeds from the issuance of the Convertible Notes, after deducting offering related costs of $5.1 million and cost of a “Capped Call Transaction” as defined below of $17.5 million, were approximately $132.7 million. The Convertible Notes bear interest at the annual rate of 5.25%, payable semiannually in arrears on May 15 and November 15 of each year, beginning on May 15, 2021, and will mature on November 15, 2025, unless earlier converted or repurchased by the Company.

The Convertible Notes will be convertible into cash, shares of the Company’s common stock or a combination thereof, at the Company’s election, at an initial conversion rate of 26.7917 shares of common stock per $1,000 principal amount of Convertible Notes, which is equivalent to an initial conversion price of approximately $37.325 per share, subject to adjustment pursuant to the terms of the Indenture governing the Convertible Notes (the "Indenture"). During the fourth quarter of 2021, the strike price was revalued to $37.208 per share to include the fourth quarter dividend declaration. The Convertible Notes may be converted at any time after, and including, July 15, 2025 until the close of business on the second scheduled trading day immediately before the maturity date.

The conversion rate of the Convertible Notes may be adjusted in certain circumstances, including in connection with a conversion of the Convertible Notes made following certain fundamental changes and under other circumstances set forth in the Indenture. It is the Company’s current intent and policy to settle any conversions of notes through a combination of cash and shares.

The Convertible Notes will be redeemable, in whole and not part, at the Company’s option at any time on or after November 20, 2023 and on or before the 40th scheduled trading day immediately before the maturity date, at a cash redemption price equal to the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, but only if the last reported sale price per share of the Company’s common stock exceeds 130% of the conversion price on: (i) each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the trading day immediately before the date the Company sends the related redemption notice; and (ii) the trading day immediately before the date the Company sends such notice. In addition, calling the Convertible Notes for redemption will constitute a Make-Whole Fundamental Change, which will result in an increase to the conversion rate in certain circumstances for a specified period of time. No sinking fund is provided for the Convertible Notes.

During the fourth quarter of 2021, the common stock sale condition of the Convertible Notes was satisfied. As described in the Indenture, this condition is satisfied when the closing stock price exceeds 130% of the conversion price of approximately $37.208 per share for at least 20 trading days of the last 30 trading days prior to quarter end. As a result, the Convertible Notes are currently convertible at the election of noteholders during the first quarter of 2022. Due to the Company’s stated intent to settle the principal value in cash, the liability portion of $121.6 million of the Convertible Notes was included in current maturities of debt on the Company’s Consolidated Balance Sheet at December 31, 2021.

As of December 31, 2021, all of the Convertible Notes remained outstanding. In addition, from January 1, 2022 to the date of this filing, the Company has not received any conversion requests for Convertible Notes and does not anticipate receiving any conversion requests in the near term as the market value of the Convertible Notes exceeds the conversion value of the Convertible Notes. As of December 31, 2021, the if-converted value of the Convertible Notes exceeded the principal amount by $225.3 million.

Total interest expense related to the Convertible Debt for the year ended December 31, 2021 was $15.1 million and was comprised of $8.2 million related to the contractual interest coupon and $6.9 million related to the amortization of the discount on the liability component.

Capped Call Transactions

In connection with the offering of the Convertible Notes, the Company entered into privately negotiated convertible note hedge transactions (collectively, the “Capped Call Transactions”). The Capped Call Transactions cover, subject to customary anti-dilution adjustments, the number of shares of the Company’s common stock that initially underlie the Convertible Notes.

The Capped Call Transactions are expected generally to reduce the potential dilution and/or offset any cash payments the Company is required to make in excess of the principal amount due upon conversion of the Convertible Notes in the event that the market price of the Company’s common stock is greater than the strike price of the Capped Call Transactions, which was initially $37.325 per share (subject to adjustment under the terms of the Capped Call Transactions). During the fourth quarter of 2021, the conversion rate was adjusted to 26.876 shares of common stock per $1,000 principal amount of Convertible Notes to account for the fourth quarter dividend declaration. The number of shares underlying the Capped Call Transactions is 4.2 million.

The cap price of the Capped Call Transactions was initially $52.2550 per share, which represented a premium of 75% over the last reported sale price of the Company’s common stock on October 29, 2020. The cost of the Capped Call Transactions was approximately $17.5 million.

The Capped Call Transactions are separate transactions, in each case entered into between the Company and the respective Option Counterparty, and are not part of the terms of the Convertible Notes and will not affect any holder’s rights under the Convertible Notes. Holders of the Convertible Notes will not have any rights with respect to the Capped Call Transactions. Additionally, the cost of the Capped Call Transactions is not expected to be tax deductible as the Company did not elect to integrate the Capped Call Transactions into the notes for tax purposes.

Accounting Treatment of the Convertible Notes and Related Hedge Transactions

As the Capped Call Transactions meet certain accounting criteria, the Capped Call Transactions were classified as equity and are not accounted for as derivatives. The proceeds from the offering of the Convertible Notes were separated into liability and equity components. On the date of issuance, the liability and equity components of the Convertible Notes were calculated to be approximately $114.5 million and $40.8 million, respectively. The initial $114.5 million liability component was determined based on the fair value of similar debt instruments excluding the conversion feature assuming a hypothetical interest rate of 12.43%. The inputs and assumptions used in the calculated fair value of the liability component of the convertible debt fall within level 2 of the fair value hierarchy. The initial $40.8 million equity component represents the difference between the fair value of the initial $114.5 million in debt and the $155.3 million of gross proceeds. The equity component is included in additional paid-in capital in the Consolidated Balance Sheets and will not be subsequently remeasured as long as it continues to meet the conditions for equity classification. The related initial debt discount of $40.8 million is being amortized over the life of the Convertible Notes as non-cash interest expense using the effective interest method.

In connection with the above-noted transactions, the Company incurred approximately $5.9 million of debt issuance costs. These offering expenses were allocated to the liability and equity components in proportion to the allocation of proceeds and accounted for as debt and equity issuance costs, respectively. The Company allocated $4.4 million of debt issuance costs to the liability component, which were capitalized as deferred financing costs within long-term debt. These costs are being amortized as interest expense over the term of the debt (which coincides with the five year life of the Convertible notes) using the effective interest method. The remaining $1.5 million of transaction costs allocated to the equity component were recorded as a reduction of the equity component.

Interest Rate Swaps

The Company has entered into a series of interest rate swaps to fix a portion of the LIBOR interest payments due under the term loan. The interest rate swaps qualify for cash flow hedge accounting treatment and as such, the change in the fair value of the interest rate swaps are recorded on the Company’s Consolidated Balance Sheets as an asset or liability with the effective portion of the gains or losses reported as a component of accumulated other comprehensive income and the ineffective portion reported in earnings. As interest payments are made on the term loan, amounts in accumulated other comprehensive income will be reclassified into earnings through interest expense to reflect a net interest on the term loan equal to the effective yield of the fixed rate of the swap plus 2.75% which is the spread on the revised LIBOR term loan. In the event that an interest rate swap is terminated prior to maturity, gains or losses in accumulated other comprehensive income will remain deferred and reclassified into earnings in the periods which the hedged forecasted transaction affects earnings.

Below is a summary of the Company’s outstanding interest rate swap agreements designated as hedges as of December 31, 2021:


Notional Amount
(in millions)		Effective Date	Fixed Rate		Receive Rate	Expiration Date

$	100.0	June 30, 2021	2.315	%	1-month LIBOR	June 30, 2023

The fair value of the interest rate swaps at December 31, 2021 is a liability of $1.8 million which is recorded within Other noncurrent liabilities with the offset to accumulated other comprehensive income on the Company’s Consolidated Balance Sheets. The Company realized $1.9 million of losses and $2.1 million and $1.1 million of gains during the years ended December 31, 2021, 2020 and 2019, respectively, related to settlements of the interest rate swaps which were recorded to interest expense on the Company’s Consolidated Statements of Operations. The interest rate swaps are classified as level 2 within the fair value hierarchy.

Debt Maturities

The contractual maturities of debt as of December 31, 2021 are as follows:


Year	(In thousands)
2022	$	107,733
2023		22,304
2024		213,934
2025		261,090
2026		—
Thereafter		—
	$	605,061

Financing Costs

The Company paid financing costs of $2.1 million, $9.7 million and $0.0 million during the years ended December 31, 2021, 2020 and 2019, respectively.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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+ Details

Taxes

12 Months Ended

Dec. 31, 2021

Income Taxes

Taxes

15. Taxes

Significant components of the provision for (benefit from) income taxes are as follows:


		Year Ended		Year Ended	Year Ended
		December 31,		December 31,	December 31,
		2021		2020	2019
(In thousands)
Current:
Federal	$	1,525	$	518	$	(36)
State		342		(569)		124
Total current	$	1,867	$	(51)	$	88
Deferred:
Federal	$	7	$	44	$	667
State		—		—		(507)
Total deferred	$	7	$	44	$	160
	$	1,874	$	(7)	$	248

A reconciliation of the statutory federal income tax provision (benefit) at the statutory rate to the actual provision for (benefit from) income taxes follows:


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019

Income tax provision (benefit) at statutory rate	$	71,284	$	(72,371)	$	49,150
Percentage depletion and other perm items		(29,392)		(7,763)		(17,743)
State taxes, net of effect of federal taxes		16,490		(3,298)		(12,769)
Change in valuation allowance		(69,603)		76,524		(24,206)
Other, net		13,095		6,901		5,816
Provision for (benefit from) income taxes	$	1,874	$	(7)	$	248

Significant components of the Company’s deferred tax assets and liabilities that result from carryforwards and temporary differences between the financial statement basis and tax basis of assets and liabilities are summarized as follows:


	December 31,		December 31,
	2021		2020
(In thousands)
Deferred tax assets:
Tax loss carryforwards	$	326,763	$	352,342
Tax credit carryforwards		2,565		3,117
Investment in partnerships		170,610		213,478
Other		17,263		19,377
Gross deferred tax assets	$	517,201	$	588,314
Valuation allowance		(504,392)		(573,995)
Total deferred tax assets	$	12,809	$	14,319
Deferred tax liabilities:
Plant and equipment		467		1,219
Convertible Notes		7,008		8,845
Other		5,304		4,218
Total deferred tax liabilities	$	12,779	$	14,282
Net deferred tax asset	$	30	$	37

The Company provides for deferred income taxes for temporary differences arising from differences between the financial statement and tax basis of assets and liabilities existing at each balance sheet date using enacted tax rates expected to be in effect when the related taxes are expected to be paid or recovered. The Company assesses the need for a valuation allowance against its deferred tax assets through a review of future taxable income, available tax planning strategies, the reversals of temporary differences and considering all available positive and negative evidence.

On the basis of this evaluation, a full valuation allowance has been held against the Company's net deferred tax asset since 2015. Through December 31, 2018, the Company was in a three-year cumulative loss position. Since 2019, the Company has been in a cumulative income position; however, has fluctuated between income and loss for individual years and quarters within each cumulative three-year period.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was signed into law. CARES Act provided for an acceleration of the refund timing related to remaining AMT credits as initially established under the Tax Cut and Jobs Act of 2017. During 2020, the Company received all outstanding refunds for AMT credits.

For the year ended December 31, 2020, a $76.5 million tax provision was recorded from the addition of valuation allowance offsetting the federal and state net operating losses generated during the year. This was partially offset by an $8.8 million release of valuation allowance through additional paid-in capital (APIC), as a result of the deferred tax liability recorded through APIC related to Convertible Notes. A $574.0 million valuation allowance fully offsets all net deferred tax assets.

For the year ended December 31, 2021, a $69.6 million income tax benefit was recorded from the release of valuation allowance as a result of the federal and state net operating losses utilized during the year.

The Company has gross federal NOL carryforwards for income tax purposes of $1.3 billion at December 31, 2021. Of these carryforwards, approximately $1.1 billion will expire, if not utilized, in various years through 2038. The remaining carryforwards have no expiration; however, they can only be used to offset 80% of the Company’s U.S. federal taxable income in any taxable year beginning after December 31, 2021.

The ability to use net operating losses (“NOLs”) in existence immediately prior to the Company’s emergence from bankruptcy in 2016 has been limited by the “ownership change” under Section 382 of the Internal Revenue Code (the “Code”) that occurred as a result of such emergence (the “Emergence Ownership Change”). NOLs generated after the Emergence Ownership Change are generally not subject to the limitations resulting from the Emergence Ownership Change.

A reconciliation of the beginning and ending amounts of gross unrecognized tax benefits follows:


	(In thousands)
Balance at December 31, 2018	$	39,093
Additions based on tax positions to the current year		2,980
Reductions for tax positions of prior years		(1,970)
Reductions as a result of lapses in the statute of limitations		(374)
Balance at December 31, 2019		39,729
Additions for tax positions related to the current year		1,583
Additions for tax positions related to the prior year		7,918
Reductions for tax positions of prior years		(732)
Reductions as a result of lapses in the statute of limitations		(382)
Balance at December 31, 2020		48,116
Additions based on tax positions to the current year		3,467
Additions for tax positions related to the prior year		3,931
Reductions for tax positions of prior years		(2,868)
Reductions as a result of lapses in the statute of limitations		(3,683)
Balance at December 31, 2021	$	48,963

If recognized, the entire amount of the gross unrecognized tax benefits at December 31, 2021 would affect the effective tax rate. The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense. The Company had accrued interest and penalties of $3.8 million and $2.3 million at December 31, 2021 and 2020, respectively. In the next 12 months, $37.5 million gross unrecognized tax benefits are expected to be reduced due to the expiration of the statute of limitations.

The Company is subject to U.S. federal income tax as well as income tax in multiple state jurisdictions. The tax years 2011 through 2021 remain open to examination for U.S. federal income tax matters and 2001 through 2021 remain open to examination for various state income tax matters.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Asset Retirement Obligations

12 Months Ended

Dec. 31, 2021

Asset Retirement Obligation

Asset Retirement Obligations

16. Asset Retirement Obligations

The Company’s asset retirement obligations arise from the Federal Surface Mining Control and Reclamation Act of 1977 and similar state statutes, which require that mine property be restored in accordance with specified standards and an approved reclamation plan. The required reclamation activities to be performed are outlined in the Company’s mining permits. These activities include reclaiming the pit and support acreage at surface mines, sealing portals at underground mines, reclaiming refuse areas and slurry ponds and water treatment.

The following table describes the changes to the Company’s asset retirement obligation liability:


	Year Ended		Year Ended
	December 31,		December 31,
	2021		2020
(In thousands)
Balance at beginning of period (including current portion)	$	257,764	$	252,798
Accretion expense		21,748		19,887
Obligations of divested operations		—		(15,455)
Adjustments to the liability from changes in estimates		(26,012)		14,889
Reclamation work completed		(39,047)		(14,355)
Balance at period end	$	214,453	$	257,764
Current portion included in accrued expenses		(21,781)		(27,032)
Noncurrent liability	$	192,672	$	230,732

As of December 31, 2021, the Company had $500.5 million in surety bonds outstanding and $20.0 million letters of credit to secure reclamation bonding obligations. The Company has posted $0.6 million in cash as collateral related to reclamation surety bonds; this amount is recorded within “Noncurrent assets” on the Consolidated Balance Sheets. Additionally, in the fourth quarter of 2021, the Company contributed $20 million to a fund that will serve to defease the long-term asset retirement obligation for its thermal asset base; this amount is recorded as “Fund for asset retirement obligations” on the Consolidated Balance Sheets. The funds will be utilized for final mine closure reclamation activities.

Fair Value Measurements

12 Months Ended

Dec. 31, 2021

Fair Value Measurements

Fair Value Measurements

17. Fair Value Measurements

The hierarchy of fair value measurements assigns a level to fair value measurements based on the inputs used in the respective valuation techniques. The levels of the hierarchy, as defined below, give the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.

● Level 1 is defined as observable inputs such as quoted prices in active markets for identical assets. Level 1 assets include available-for-sale equity securities, U.S. Treasury securities, and coal swaps and futures that are submitted for clearing on the New York Mercantile Exchange.

● Level 2 is defined as observable inputs other than Level 1 prices. These include quoted prices for similar assets or liabilities in an active market, quoted prices for identical assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. The Company’s level 2 assets and liabilities include U.S. government agency securities, coal commodity contracts and interest rate swaps with fair values derived from quoted prices in over-the-counter markets or from prices received from direct broker quotes.

● Level 3 is defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. These include the Company’s commodity option contracts (coal and heating oil) valued using modeling techniques, such as Black-Scholes, that require the use of inputs, particularly volatility, that are rarely observable. Changes in the unobservable inputs would not have had a significant impact on the reported Level 3 fair values at December 31, 2021 and 2020.

The table below sets forth, by level, the Company’s financial assets and liabilities that are recorded at fair value in the accompanying consolidated balance sheet:


	December 31, 2021
	Total		Level 1		Level 2		Level 3

	(In thousands)
Assets:
Investments in marketable securities	$	14,463	$	6,003	$	8,460	$	—
Derivatives		4,214		—		2,995		1,219
Total assets	$	18,677	$	6,003	$	11,455	$	1,219
Liabilities:
Derivatives	$	2,077	$	313	$	1,764	$	—


	Fair Value at December 31, 2020
	Total		Level 1		Level 2		Level 3

	(In thousands)
Assets:
Investments in marketable securities	$	96,765	$	57,224	$	39,541	$	—
Derivatives		853		21		832		—
Total assets	$	97,618	$	57,245	$	40,373	$	—
Liabilities:
Derivatives	$	3,899	$	7	$	3,892	$	—

The Company’s contracts with its counterparties allow for the settlement of contracts in an asset position with contracts in a liability position in the event of default or termination. For classification purposes, the Company records the net fair value of all the positions with these counterparties as a net asset or liability. Each level in the table above displays the underlying contracts according to their classification in the accompanying Consolidated Balance Sheet, based on this counterparty netting.

The following table summarizes the change in the fair values of financial instruments categorized as level 3.


	2021		2020
(In thousands)
Balance, beginning of period	$	—	$	61
Realized and unrealized (gains) losses recognized in earnings, net		—		(1,158)
Purchases		1,219		1,235
Issuances		—		(138)
Settlements		—		—
Ending balance	$	1,219	$	—

No unrealized losses were recognized during the year ended December 31, 2021 related to level 3 financial instruments held on December 31, 2021.

Cash and Cash Equivalents

At December 31, 2021 and 2020, the carrying amounts of cash and cash equivalents approximate their fair value.

Fair Value of Long-Term Debt

At December 31, 2021 and 2020, the fair value of the Company’s debt, including amounts classified as current, was $819.5 million and $533.8 million, respectively. Fair values are based upon observed prices in an active market, when available, or from valuation models using market information, which fall into Level 2 in the fair value hierarchy.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Capital Stock

12 Months Ended

Dec. 31, 2021

Capital Stock

Capital Stock

18. Capital Stock

Dividends

The Company declared and paid cash dividends per share during the periods presented below:


2021:	Dividends per share		Amount (in thousands)
1st quarter	$	—	$	—
2nd quarter		—		—
3rd quarter		—		—
4th quarter		0.25		3,830
Total cash dividends declared and paid	$	0.25	$	3,830


			Amount
2020:	Dividends per share		(in thousands)
1st quarter	$	0.50	$	8,245
2nd quarter		—		—
3rd quarter		—		—
4th quarter		—		—
Total cash dividends declared and paid	$	0.50	$	8,245

Future dividend declarations will be subject to ongoing Board review and authorization will be based on a number of factors, including business and market conditions, the Company’s future financial performance and other capital priorities.

Share Repurchase Program

During April 2019, the Board of Directors of Arch Resources, Inc. approved an incremental $250 million to the share repurchase program bringing the total authorization to $1,050 million. The Company did not purchase any shares of its common stock under this program for the years ended December 31, 2021 and 2020.

As of December 31, 2021, the Company had repurchased 10,088,378 shares at an average share price of $82.01 per share for an aggregate purchase price of approximately $827 million since inception of the stock repurchase program, and the remaining authorized amount for stock repurchases under this program is $223 million.

The timing of any future share repurchases, and the ultimate number of shares purchased, will depend on a number of factors, including business and market conditions, the Company’s future financial performance and other capital priorities. The shares will be acquired in the open market or through private transactions in accordance with the Securities and Exchange Commission requirements. The share repurchase program has no termination date, but may be amended, suspended or discontinued at any time and does not commit the Company to repurchase shares of its common stock. The actual number and value of the shares to be purchased will depend on the performance of the Company’s stock price and other market conditions.

Outstanding Warrants

In October 2016, the Company emerged from Chapter 11 which became known as the “Effective Date”. On the Effective Date, the Company entered into a warrant agreement (the “Warrant Agreement”) with American Stock Transfer & Trust Company, LLC as warrant agent and, pursuant to the terms of the Plan, issued warrants (“Warrants”) to purchase up to an aggregate of 1,914,856 shares of Class A Common Stock, par value $0.01 per share, of Arch Resources (the “Class A Common Stock”) to certain holders of claims in the Chapter 11 case arising under the cancelled notes. Each Warrant expires on October 5, 2023, and is initially exercisable for one share of Class A Common Stock at an initial exercise price of $57.00 per share. The Warrants are exercisable by a holder paying the exercise price in cash or on a cashless basis, at the election of the holder. The Warrants contain anti-dilution adjustments for stock splits, reverse stock splits, stock dividends, dividends and distributions of cash, other securities or other property, spin-offs and tender and exchange offers by Arch Resources or its subsidiaries to purchase Class A Common Stock at above-market prices.

If, in connection with a merger, recapitalization, business combination, transfer to a third party of substantially all of Arch Resources’s consolidated assets or other transaction that results in a change to the Class A Common Stock (each, a “Transaction”), (i) the Transaction is consummated prior to the fifth anniversary of the Effective Date and the Transaction consideration to holders of Class A Common Stock is 90% or more listed common stock or common stock of a company that provides publicly available financial reporting, and holds management calls regarding the same, no less than quarterly (“Reporting Stock”) or (ii) regardless of the consideration, the Transaction is consummated on or after the fifth anniversary of the Effective Date, the Warrants will be assumed by the surviving company and will become exercisable for the consideration that the holders of Class A Common Stock receive in such Transaction; provided that if the consideration such holders receive consists solely of cash, then upon the consummation of such Transaction, Arch Resources will pay for each Warrant an amount of cash equal to the greater of (i) (x) the amount of cash payable with respect to the number of shares of Class A Common Stock underlying the Warrant minus (y) the exercise price per share then in effect multiplied by the number of shares of Class A Common Stock underlying the Warrant and (ii) $0.

If a Transaction is consummated prior to the fifth anniversary of the Effective Date in which the Transaction consideration is less than 90% Reporting Stock, a portion of the Warrants corresponding to the portion of the Transaction consideration that is Reporting Stock will be assumed by the surviving company and will become exercisable for the Reporting Stock consideration that the holders of Class A Common Stock receive in such

Transaction, and the portion of the Warrants corresponding to the portion of the Transaction consideration that is not Reporting Stock will, at the option of each holder, (i) be assumed by the surviving company and will become exercisable for the consideration that the holders of Class A Common Stock receive in such Transaction or (ii) be redeemed by Arch Resources for cash in an amount equal to the Black Scholes Payment (as defined in the Warrant Agreement).

During 2021, holders of warrants exercised 20,145 of the warrants, leaving 1,825,423 warrants outstanding at December 31, 2021.

As provided in ASC 825-20, “Financial Instruments,” the warrants are considered equity because they can only be physically settled in Company shares, can be settled in unregistered shares, the Company has adequate authorized shares to settle the outstanding warrants and each warrant is fixed in terms of settlement to one share of Company stock subject only to remote contingency adjustment factors designed to assure the relative value in terms of shares remains fixed.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Section S99
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Stock-Based Compensation and Other Incentive Plans

12 Months Ended

Dec. 31, 2021

Stock-Based Compensation and Other Incentive Plans

Stock-Based Compensation And Other Incentive Plans

19. Stock-Based Compensation and Other Incentive Plans

Under the Company’s 2016 Omnibus Incentive Plan (the “Incentive Plan”), 3.0 million shares of the Company’s common stock were reserved for awards to officers and other selected key management employees of the Company. The Incentive Plan provides the Board of Directors with the flexibility to grant stock options, stock appreciation rights, restricted stock awards, restricted stock units, performance stock or units, phantom stock awards and rights to acquire stock through purchase under a stock purchase program (“Awards”). Awards the Board of Directors elects to pay out in cash do not impact the shares authorized in the Incentive Plan. Shares available for award under the plan were 1.8 million at December 31, 2021.

Restricted Stock Unit Awards

The Company may issue restricted stock and restricted stock units, which require no payment from the employee. Restricted stock cliff-vests at various dates and restricted stock units either vest ratably over or vest at the end of the award’s stated vesting period. Compensation expense is based on the fair value on the grant date and is recorded ratably over the vesting period utilizing the straight-line recognition method. The employee receives cash compensation equal to the amount of dividends that would have been paid on the underlying shares.

During 2021, the Company granted both time based awards and performance based awards. The time based awards vest ratably over two, three, and four years, and the performance based awards vest over a three year period. The time based awards’ and non-market based performance awards grant date fair value was determined based on the stock price at the date of grant. The market based performance awards grant date fair value was determined using a Black-Scholes Monte Carlo simulation. An historical volatility of 57% was selected for the performance-based award based on comparator companies, and the three-year risk free rate was derived from yields on U.S. Government bonds. Information regarding the restricted stock units activity and weighted average grant-date fair value follows:


	Time Based Awards			Performance Based Awards
		Weighted			Weighted
		Average			Average
	Restricted	Grant-Date		Restricted	Grant-Date
	Stock Units	Fair Value		Stock Units	Fair Value
(Shares in thousands)
Outstanding at January 1, 2021	341	$	64.38	286	$	71.44
Granted	286		67.21	164		58.74
Forfeited/Canceled	(9)		57.70	(100)		105.95
Vested	(189)		75.27	(9)		135.34
Unvested outstanding at December 31, 2021	429	$	61.60	341	$	53.49

The Company recognized expense related to restricted stock units of $20.5 million, $17.4 million and $22.0 million for the years ended December 31, 2021, 2020 and 2019, respectively. As of December 31, 2021, there was $31.4

million of unrecognized share-based compensation expense which is expected to be recognized over a weighted-average period of approximately two years.

Workers' Compensation Expense

12 Months Ended

Dec. 31, 2021

Workers' Compensation Expense

Workers' Compensation Expense

20. Workers’ Compensation Expense

The Company is liable under the Federal Mine Safety and Health Act of 1969, as subsequently amended, to provide for pneumoconiosis (occupational disease) benefits to eligible employees, former employees and dependents. The Company currently provides for federal claims principally through a self-insurance program. The Company is also liable under various state workers’ compensation statutes for occupational disease benefits. The occupational disease benefit obligation represents the present value of the actuarially computed present and future liabilities for such benefits over the employees’ applicable years of service.

In October 2019, the Company filed an application with the Office of Workers’ Compensation Programs (“OWCP”) within the Department of Labor for reauthorization to self-insure federal black lung benefits. In February 2020, the Company received a reply from the OWCP confirming its status to remain self-insured contingent upon posting additional collateral of $71.1 million within 30 days of receipt of the letter. The Company is currently appealing the ruling from the OWCP and has received an extension to self-insure during the appeal process. The Company is evaluating alternatives to self-insurance, including the purchase of commercial insurance to cover these claims.

In addition, the Company is liable for workers’ compensation benefits for traumatic injuries which are calculated using actuarially-based loss rates, loss development factors and discounted based on a risk free rate of 1.47%. Traumatic workers’ compensation claims are insured with varying retentions/deductibles, or through state-sponsored workers’ compensation programs.

Workers’ compensation expense consists of the following components:


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019

Self-insured occupational disease benefits:
Service cost	$	7,796	$	7,564	$	6,677
Interest cost⁽¹⁾		4,439		5,115		4,922
Net amortization⁽¹⁾		2,363		1,189		—
Total occupational disease	$	14,598	$	13,868	$	11,599
Traumatic injury claims and assessments		3,925		12,922		13,050
Total workers’ compensation expense	$	18,523	$	26,790	$	24,649

(1)

In accordance with the adoption of ASU 2017-07, “Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” these costs are recorded within Nonoperating expenses in the Consolidated Statements of Operations on the line item “Non-service related pension and postretirement benefit costs.”

The table below reconciles changes in the occupational disease liability for the respective period.


	Year Ended		Year Ended
	December 31,		December 31,
(In thousands)	2021		2020
Beginning of period	$	183,001	$	158,325
Service cost		7,796		7,564
Interest cost		4,439		5,115
Actuarial (gain) loss		(21,245)		19,327
Benefit and administrative payments		(6,406)		(7,330)
	$	167,585	$	183,001

The following table provides the assumptions used to determine the projected occupational disease obligation:


	Year Ended December 31, 2021	Year Ended December 31, 2020
(Percentages)
Discount rate	2.82	2.48

The higher discount rate decreased obligations by $11.6 million.

Summarized below is information about the amounts recognized in the accompanying Consolidated Balance Sheets for workers’ compensation benefits:


	Year Ended		Year Ended
	December 31,		December 31,
	2021		2020
(In thousands)
Occupational disease costs	$	167,585	$	183,001
Traumatic and other workers’ compensation claims		70,722		76,953
Total obligations		238,307		259,954
Less amount included in accrued expenses		14,202		15,259
Noncurrent obligations	$	224,105	$	244,695

As of December 31, 2021, the Company had $120.7 million in surety bonds, letters of credit and cash outstanding to secure workers’ compensation obligations.

As of December 31, 2021, the Company’s recorded liabilities include $13.1 million of obligations that are reimbursable under various insurance policies purchased by the Company. These insurance receivables are recorded in the balance sheet line items “Other receivables” and “Other noncurrent assets” for $0.6 million and $12.5 million, respectively.

The following represents expected future payments:



Year	(In thousands)
2022	$	12,525
2023		12,883
2024		12,997
2025		13,318
2026		13,595
Next 5 years		33,849
	$	99,167

Employee Benefit Plans

12 Months Ended

Dec. 31, 2021

Employee Benefit Plans

Employee Benefit Plans

21. Employee Benefit Plans

Defined Benefit Pension and Other Postretirement Benefit Plans

The Company provides funded and unfunded non-contributory defined benefit pension plans covering certain of its salaried and hourly employees. Benefits are generally based on the employee’s age and compensation. The Company funds the plans in an amount not less than the minimum statutory funding requirements or more than the maximum amount that can be deducted for U.S. federal income tax purposes.

The Company also currently provides certain postretirement medical and life insurance coverage for eligible employees. Generally, covered employees who terminate employment after meeting eligibility requirements are eligible for postretirement coverage for themselves and their dependents. The Company offers a subsidy to eligible retirees based on age and years of service at retirement and contain other cost-sharing features such as deductibles and coinsurance. The Company’s current funding policy is to fund the cost of all postretirement benefits as they are paid.

On January 1, 2015, the Company’s cash balance and excess plans were amended to freeze new service credits for any new or active employees.

Obligations and Funded Status.

Summaries of the changes in the benefit obligations, plan assets and funded status of the plans are as follows:


	Pension Benefits				Other Postretirement Benefits
	Year Ended		Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,		December 31,
	2021		2020		2021		2020
(In thousands)
CHANGE IN BENEFIT OBLIGATIONS
Benefit obligations at beginning of period	$	202,267	$	217,548	$	100,898	$	87,867
Service cost		—		—		341		419
Interest cost		4,334		5,498		2,113		2,392
Settlement gain		(1,768)		(896)		—		—
Curtailments		—		—		—		284
Plan Amendments		(341)		—		—		—
Benefits paid		(27,014)		(38,221)		(5,676)		(6,507)
Other-primarily actuarial (gain) loss		(7,502)		18,338		(18,431)		16,443
Benefit obligations at end of period	$	169,976	$	202,267	$	79,245	$	100,898
CHANGE IN PLAN ASSETS
Value of plan assets at beginning of period	$	199,248	$	211,802	$	—	$	—
Actual return on plan assets		5,117		23,055		—		—
Employer contributions		148		2,612		5,676		6,507
Benefits paid		(27,014)		(38,221)		(5,676)		(6,507)
Value of plan assets at end of period	$	177,499	$	199,248	$	—	$	—
Accrued benefit net asset (obiligation)	$	7,523	$	(3,019)	$	(79,245)	$	(100,898)
ITEMS NOT YET RECOGNIZED AS A COMPONENT OF NET PERIODIC BENEFIT COST
Prior service credit	$	1,091	$	880	$	—	$	—
Accumulated gain		16,102		10,790		20,657		2,226
	$	17,193	$	11,670		20,657	$	2,226
BALANCE SHEET AMOUNTS
Noncurrent asset	$	8,973	$	—	$	—	$	—
Current liability		(150)		(140)		(5,680)		(6,510)
Noncurrent liability		(1,300)		(2,879)		(73,565)		(94,388)
	$	7,523	$	(3,019)	$	(79,245)	$	(100,898)

Pension Benefits

The accumulated benefit obligation for all pension plans was $170.0 million and $202.3 million at December 31, 2021 and 2020, respectively.

The weighted-average interest credit rate for the cash balance pension plan was 4.25% at December 31, 2021 and 2020.

Significant changes affecting the benefit obligations included the higher discount rate which decreased plan obligations by $8.9 million.

Other Postretirement Benefits

Significant gains and losses affecting the benefit obligations included:

●

the higher discount rate decreased plan obligations by $4.0 million;

●

the claims cost assumptions were updated decreasing plan obligations by $7.1 million; and

●

updated census data resulted in a decrease of plan obligations in the amount of $6.3 million.

Components of Net Periodic Benefit Cost. The following table details the components of pension and postretirement benefit costs (credits):


	Pension Benefits						Other Postretirement Benefits
	Year Ended		Year Ended		Year Ended		Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,		December 31,		December 31,		December 31,
	2021		2020		2019		2021		2020		2019
(In thousands)
Service cost	$	—	$	—	$	—	$	341	$	419	$	480
Interest cost⁽¹⁾		4,334		5,498		8,141		2,113		2,392		3,505
Curtailments		—		—		—		—		—		—
Settlements⁽¹⁾		(1,768)		(896)		(1,326)		—		—		—
Expected return on plan assets⁽¹⁾		(7,245)		(8,283)		(10,555)		—		—		—
Amortization of prior service credits⁽¹⁾		(190)		(112)		(24)		—		—		—
Amortization of other actuarial losses (gains) ⁽¹⁾		—		—		(11)		—		(1,379)		(2,974)
Net benefit cost (credit)	$	(4,869)	$	(3,793)	$	(3,775)	$	2,454	$	1,432	$	1,011

(1)

The differences generated from changes in assumed discount rates and returns on plan assets are amortized into earnings over the remaining service attribution periods of the employees using the corridor method.

Assumptions. The following table provides the assumptions used to determine the actuarial present value of projected benefit obligations for the respective periods.


	Year Ended	Year Ended
	December 31,	December 31,
	2021	2020
(Percentages)
Pension Benefits
Discount rate	2.67/2.49	2.19/1.96

Other Postretirement Benefits
Discount rate	2.63	2.17

The following table provides the weighted average assumptions used to determine net periodic benefit cost for the respective periods.


	Year Ended	Year Ended	Year Ended
	December 31,	December 31,	December 31,
	2021	2020	2019
(Percentages)
Pension Benefits
Discount rate	2.50	2.72	3.65
Expected return on plan assets	4.30	4.65	5.10

Other Postretirement Benefits
Discount rate	2.17	3.09	4.12

The discount rates used in 2021, 2020 and 2019 were reevaluated during the year for settlements and curtailments. The obligations are remeasured at an updated discount rate that impacts the benefit cost recognized subsequent to the remeasurement.

The Company establishes the expected long-term rate of return at the beginning of each fiscal year based upon historical returns and projected returns on the underlying mix of invested assets. The Company utilizes modern portfolio theory modeling techniques in the development of its return assumptions. This technique projects rates of return that can be generated through various asset allocations that lie within the risk tolerance set forth by members of the Company’s pension committee (the “Pension Committee”). The risk assessment provides a link between a pension plan’s risk capacity, management’s willingness to accept investment risk and the asset allocation process, which ultimately leads to the return generated by the invested assets.

The health care cost trend rate assumed for 2022 is 8.0% and is expected to reach an ultimate trend rate of 4.5% by 2038.

Plan Assets

The Pension Committee is responsible for overseeing the investment of pension plan assets. The Pension Committee is responsible for determining and monitoring appropriate asset allocations and for selecting or replacing investment managers, trustees and custodians. The pension plan’s current investment targets are 15% equity and 85% fixed income securities. The Pension Committee reviews the actual asset allocation in light of these targets on a periodic basis and rebalances among investments as necessary. The Pension Committee evaluates the performance of investment managers as compared to the performance of specified benchmarks and peers and monitors the investment managers to ensure adherence to their stated investment style and to the plan’s investment guidelines.

The Company’s pension plan assets at December 31, 2021 and 2020, respectively, are categorized below according to the fair value hierarchy as defined in Note 17, “Fair Value Measurements”:


	Total				Level 1				Level 2				Level 3
	2021		2020		2021		2020		2021		2020		2021		2020

	(In thousands)
Equity Securities:^(A)
U.S. small-cap	$	—	$	2,287	$	—	$	2,287	$	—	$	—	$	—	$	—
U.S. mid-cap		—		2,890		—		2,890		—		—		—		—
Fixed income securities:
U.S. government securities^(B)		42,273		31,850		41,129		18,705		1,144		13,145		—		—
Non-U.S. government securities^(C)		333		1,612		—		—		333		1,612		—		—
Corporate fixed income^(D)		81,906		98,357		—		—		81,906		98,357		—		—
State and local government securities^(E)		2,514		2,962		—		—		2,514		2,962		—		—
Other investments^(G)		23,828		3,519		—		—		23,828		3,519		—		—
Total	$	150,854	$	143,477	$	41,129	$	23,882	$	109,725	$	119,595	$	—	$	—
Assets at net asset value^(F)		26,645		55,771
	$	177,499	$	199,248

(A)

Equity securities includes investments in 1) common stock, 2) preferred stock and 3) mutual funds. Investments in common and preferred stocks are valued using quoted market prices multiplied by the number of shares owned. Investments in mutual funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date and are traded on listed exchanges.

(B)

U.S. government securities includes agency and treasury debt. These investments are valued using dealer quotes in an active market.

(C)

Non-U.S. government securities includes debt securities issued by foreign governments and are valued utilizing a price spread basis valuation technique with observable sources from investment dealers and research vendors.

(D)

Corporate fixed income is primarily comprised of corporate bonds and certain corporate asset-backed securities that are denominated in the U.S. dollar and are investment-grade securities. These investments are valued using dealer quotes.

(E)

State and local government securities include different U.S. state and local municipal bonds and asset backed securities, these investments are valued utilizing a market approach that includes various valuation techniques and sources such as value generation models, broker quotes, benchmark yields and securities, reported trades, issuer trades and/or other applicable data.

(F)

Investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy in accordance with Accounting Standards Update 2015-07. These investments are primarily mutual funds that are highly liquid with no restrictions on ability to redeem the funds into cash.

(G)

Other investments include cash, forward contracts, derivative instruments, credit default swaps, interest rate swaps and mutual funds. Investments in interest rate swaps are valued utilizing a market approach that includes various valuation techniques and sources such as value generation models, broker quotes in active and non-active markets, benchmark yields and securities, reported trades, issuer trades and/or other applicable data. Forward contracts and derivative instruments are valued at their exchange listed price or broker quote in an active market. The mutual funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date and are traded on listed exchanges.

Cash Flows. The Company expects to make no contributions to the pension plans in 2022.

The following represents expected future benefit payments from the plan:


			Other
	Pension		Postretirement
	Benefits		Benefits

	(In thousands)
2022	$	11,245	$	5,968
2023		11,415		5,884
2024		11,476		5,617
2025		11,181		5,458
2026		10,892		5,275
Next 5 years		46,338		23,632
	$	102,547	$	51,834

Other Plans

The Company sponsors savings plans which were established to assist eligible employees in providing for their future retirement needs. The Company’s expense, representing its contributions to the plans, was $16.8 million, $17.1 million, and $17.5 million for the years ended December 31, 2021, 2020, and 2019, respectively.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Earnings (Loss) per Common Share

12 Months Ended

Dec. 31, 2021

Earnings per Common Share

Earnings (Loss) per Common Share

22. Earnings Per Common Share

The Company computes basic net income (loss) per share using the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is computed using the weighted average number of common shares and the effect of potentially dilutive securities outstanding during the period. Potentially dilutive securities may consist of warrants, restricted stock units or other contingently issuable shares and convertible debt. The dilutive effect of outstanding warrants, restricted stock units and convertible debt is reflected in diluted earnings per share by application of the treasury stock method. The weighted average share impact of warrants, restricted stock units and convertible debt that were excluded from the calculation of diluted shares due to the Company incurring a net loss for the twelve months ending December 31, 2020 were 215,000 shares.

The following table provides the basis for basic and diluted EPS by reconciling the numerators and denominators of the computations:


	Year Ended	Year Ended	Year Ended
	December 31,	December 31,	December 31,
	2021	2020	2019
(In Thousands)
Weighted average shares outstanding:
Basic weighted average shares outstanding	15,318	15,153	16,218
Effect of dilutive securities	2,261	—	1,080

Diluted weighted average shares outstanding	17,579	15,153	17,298

Leases

12 Months Ended

Dec. 31, 2021

Leases

Leases

23. Leases

The Company has operating and finance leases for mining equipment, office equipment and office space with remaining lease terms ranging from less than one year to approximately seven years. Some of these leases include both lease and non-lease components which are accounted for as a single lease component as the Company has elected the practical expedient to combine these components for all leases. As most of the leases do not provide an implicit rate, the Company calculated the Right-of-use (“ROU”) assets and lease liabilities using its’ secured incremental borrowing rate at the lease commencement date.

As of December 31, 2021 and December 31, 2020, the Company had the following ROU assets and lease liabilities within the Company’s Consolidated Balance Sheets:


		December 31,		December 31,
		2021		2020
Assets	Balance Sheet Classification
Operating lease right-of-use assets	Other noncurrent assets	$	14,646	$	17,069
Financing lease right-of-use assets	Other noncurrent assets		4,215		5,512
Total Lease Assets		$	18,861	$	22,581

Liabilities	Balance Sheet Classification
Financing lease liabilities - current	Accrued expenses and other current liabilities	$	917	$	860
Operating lease liabilities - current	Accrued expenses and other current liabilities		2,606		2,454
Financing lease liabilities - long-term	Other noncurrent liabilities		4,097		5,014
Operating lease liabilities - long-term	Other noncurrent liabilities		12,713		15,278
		$	20,333	$	23,606

Weighted average remaining lease term in years
Operating leases			5.14		5.99
Finance leases			3.25		4.25

Weighted average discount rate
Operating leases			5.5%		5.5%
Finance leases			6.4%		6.4%

Information related to leases was as follows:


		Year Ended December 31,
		2021		2020

	(In thousands)
Operating lease information:
Operating lease cost		$	3,364	$	3,620
Operating cash flows from operating leases			3,377		3,610

Financing lease information:
Financing lease cost		$	1,572	$	1,179
Operating cash flows from financing leases			1,210		909

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:


	Operating		Finance
Year	Leases		Leases
	(In thousands)
2022	$	3,389	$	1,210
2023		3,356		1,210
2024		3,200		1,210
2025		3,185		2,111
2026		3,080		—
Thereafter		1,533		—
Total minimum lease payments	$	17,743	$	5,741
Less imputed interest		(2,424)		(727)

Total lease liabilities	$	15,319	$	5,014

Rental expense, including amounts related to these operating leases and other shorter-term arrangements, amounted to $9.2 million in 2021, $8.6 million in 2020 and $12.0 million in 2019.

Royalties are paid to lessors either as a fixed price per ton or as a percentage of the gross selling price of the mined coal. Royalties under the majority of the Company’s significant leases are paid on the percentage of gross selling price basis. Royalty expense, including production royalties, was $127.8 million in 2021, $103.7 million in 2020, and $149.5 million in 2019.

As of December 31, 2021, certain of the Company’s lease obligations were secured by outstanding surety bonds totaling $26.0 million.

Risk Concentrations

12 Months Ended

Dec. 31, 2021

Risk Concentrations

Risk Concentrations

24. Risk Concentrations

Credit Risk and Major Customers

The Company has a formal written credit policy that establishes procedures to determine creditworthiness and credit limits for trade customers and counterparties in the over-the-counter coal market. Generally, credit is extended based on an evaluation of the customer’s financial condition. Collateral is not generally required, unless credit cannot be established. Credit losses are provided for in the financial statements and historically have been minimal.

The Company markets its thermal coal principally to domestic and foreign electric utilities and its metallurgical coal to domestic and foreign steel producers. As of December 31, 2021 and 2020, accounts receivable from sales of thermal coal of $72.8 million and $41.7 million, respectively, represented 22% and 38% of total trade receivables at each date. As of December 31, 2021 and 2020, accounts receivable from sales of metallurgical-quality coal of $251.5 million and $69.1 million, respectively, represented 78% and 62% of total trade receivables at each date.

The Company uses shipping destination as the basis for attributing revenue to individual countries. Because title may transfer on brokered transactions at a point that does not reflect the end usage point, they are reflected as exports,

and attributed to an end delivery point if that knowledge is known to the Company. The Company’s foreign revenues by geographical location are as follows:


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019
(In thousands)
Europe	$	592,702	$	289,176	$	537,117
Asia		446,724		138,086		322,029
Central and South America		109,613		56,905		82,476
Africa		—		12,763		18,698
Total	$	1,149,039	$	496,930	$	960,320

The Company is committed under long-term contracts to supply thermal coal that meets certain quality requirements at specified prices. These prices are generally adjusted based on market indices. Quantities sold under some of these contracts may vary from year to year within certain limits at the option of the customer based on their requirements. The Company sold approximately 73.0 million tons of coal in 2021. Approximately 63% of this tonnage (representing approximately 35% of the Company’s revenues) was sold under long-term contracts (contracts having a term of greater than one year). Long-term contracts range in remaining life from one to five years.

Third-party sources of coal

The Company purchases coal from third parties that it sells to customers. Factors beyond the Company’s control could affect the availability of coal purchased by the Company. Disruptions in the quantities of coal purchased by the Company could impair its ability to fill customer orders or require it to purchase coal from other sources at prevailing market prices in order to satisfy those orders.

Transportation

The Company depends upon barge, rail, truck and belt transportation systems to deliver coal to its customers. Disruption of these transportation services due to weather-related problems, mechanical difficulties, strikes, lockouts, bottlenecks, and other events could temporarily impair the Company’s ability to supply coal to its customers. In the past, disruptions in rail service have resulted in missed shipments and production interruptions.

Revenue Recognition

12 Months Ended

Dec. 31, 2021

Revenue Recognition

Revenue Recognition

25. Revenue Recognition

ASC 606-10-50-5 requires that entities disclose disaggregated revenue information in categories (such as type of good or service, geography, market, type of contract, etc.) that depict how the nature, amount, timing, and uncertainty of revenue and cash flow are affected by economic factors. ASC 606-10-55-89 explains that the extent to which an entity’s revenue is disaggregated depends on the facts and circumstances that pertain to the entity’s contracts with customers and that some entities may need to use more than one type of category to meet the objective for disaggregating revenue.

In general, the Company’s business segmentation is aligned according to the nature and economic characteristics of its coal and customer relationships and provides meaningful disaggregation of each segment’s results. The Company has further disaggregated revenue between North America and Seaborne revenues which depicts the pricing and contract differences between the two. North America revenue is characterized by contracts with a term of one year or longer and typically the pricing is fixed; whereas Seaborne revenue generally is derived by spot or short term contracts with an indexed based pricing mechanism.


					Corporate,
					Other and
	MET		Thermal		Eliminations		Consolidated

	(in thousands)
Year Ended December 31, 2021
North America revenues	$	163,833	$	893,741	$	1,429	$	1,059,003
Seaborne revenues		985,300		163,739		—		1,149,039

Total revenues	$	1,149,133	$	1,057,480	$	1,429	$	2,208,042

Year Ended December 31, 2020
North America revenues	$	173,508	$	772,730	$	24,424	$	970,662
Seaborne revenues		468,028		28,902		—		496,930

Total revenues	$	641,536	$	801,632	$	24,424	$	1,467,592

Year Ended December 31, 2019
North America revenues	$	217,381	$	1,105,801	$	10,850	$	1,334,032
Seaborne revenues		773,169		187,151		—		960,320

Total revenues	$	990,550	$	1,292,952	$	10,850	$	2,294,352

As of December 31, 2021, the Company has outstanding performance obligations for approximately 83.2 million tons of coal for 2022 representing 75.6 million tons of fixed price contracts and 7.6 million tons of variable price contracts. Additionally, the Company has outstanding performance obligations of approximately 65.5 million tons in periods beyond 2022 comprised of 61.5 million tons of fixed price contracts and 4.0 million tons of variable price contracts.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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+ Details

Commitments and Contingencies

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies

Commitments and Contingencies

26. Commitments and Contingencies

The Company is a party to numerous claims and lawsuits with respect to various matters. As of December 31, 2021 and 2020, the Company had accrued $0.1 million and $0.1 million, respectively, for all legal matters, all classified as current. The ultimate resolution of any such legal matter could result in outcomes which may be materially different from amounts the Company has accrued for such matters. The Company believes it has recorded adequate reserves for these matters.

The Company has unconditional purchase obligations relating to purchases of coal, materials and supplies and capital commitments, other than reserve acquisitions, and is also a party to transportation capacity commitments. The future commitments under these agreements total $132.7 million in 2021, and is immaterial thereafter.

Segment Information

12 Months Ended

Dec. 31, 2021

Segment Information

Segment Information

27. Segment Information

On December 31, 2020, the Company sold its Viper operation. As a result, the Company revised its reportable segments beginning in the first quarter of 2021 to reflect the manner in which the chief operating decision maker (CODM) views the Company’s businesses going forward for purposes of reviewing performance, allocating resources and assessing future prospects and strategic execution. Prior to the first quarter of 2021, the Company had three reportable segments: MET, Powder River Basin (PRB), and Other Thermal. After the divestment of Viper, the Company has three remaining active thermal mines: West Elk, Black Thunder, and Coal Creek. With two distinct lines of business, metallurgical and thermal, the movement to two segments aligns with how the Company makes decisions

and allocates resources. No changes were made to the MET Segment and the three remaining thermal mines are now reported as the “Thermal Segment”. The prior periods have been recasted to reflect the change in reportable segments.

The Company’s reportable business segments are based on two distinct lines of business, metallurgical and thermal, and may include a number of mine complexes. The Company manages its coal sales by market, not by individual mining complex. Geology, coal transportation routes to customers, and regulatory environments also have a significant impact on the Company’s marketing and operations management. Mining operations are evaluated based on Adjusted EBITDA, per-ton cash operating costs (defined as including all mining costs except depreciation, depletion, amortization, accretion on asset retirement obligations, and pass-through transportation expenses, divided by segment tons sold), and on other non-financial measures, such as safety and environmental performance. Adjusted EBITDA is not a measure of financial performance in accordance with generally accepted accounting principles, and items excluded from Adjusted EBITDA are significant in understanding and assessing the Company’s financial condition. Therefore, Adjusted EBITDA should not be considered in isolation, nor as an alternative to net income (loss), income (loss) from operations, cash flows from operations or as a measure of our profitability, liquidity or performance under generally accepted accounting principles. The Company uses Adjusted EBITDA to measure the operating performance of its segments and allocate resources to the segments. Furthermore, analogous measures are used by industry analysts and investors to evaluate the Company’s operating performance. Investors should be aware that the Company’s presentation of Adjusted EBITDA may not be comparable to similarly titled measures used by other companies. The Company reports its results of operations primarily through the following reportable segments: Metallurgical (MET) segment, containing the Company’s metallurgical operations in West Virginia, and the Thermal segment containing the Company’s thermal operations in Wyoming and Colorado.

In November of 2021, the Company sold its equity investment Knight Hawk Holdings, LLC, which had been part of its Corporate, Other and Eliminations grouping. For further information on the sale of Knight Hawk Holdings, LLC, please see Note 4 to the Consolidated Financial Statements, “Divestitures.”

On December 31, 2020, the Company sold its Viper operation, which had been part of its Thermal segment. Viper’s results for the full year of 2020 are included in the Company’s full year 2020 results, and in all preceding periods’ results presented herein. For further information on the sale of Viper to Knight Hawk Holdings, LLC, please see Note 4, “Divestitures” to the Consolidated Financial Statements.

On December 13, 2019, the Company closed on its definitive agreement to sell Coal-Mac LLC, an operating mine complex within the Company’s Thermal coal segment. Coal-Mac is included in the Thermal segment results below up to the date of divestiture. For further information on the divestiture, please see Note 4, “Divestitures” to the Consolidated Financial Statements.

Reporting segment results for the year ended December 31, 2021, the year ended December 31, 2020, and the year ended December 31, 2019 are presented below. The Corporate, Other, and Eliminations grouping includes these charges: idle operations; change in fair value of coal derivatives and coal trading activities, net; corporate overhead; land management activities; other support functions; and the elimination of intercompany transactions.


					Corporate,
					Other and
(In thousands)	MET		Thermal		Eliminations		Consolidated

Year Ended December 31, 2021
Revenues	$	1,149,133	$	1,057,480	$	1,429	$	2,208,042
Adjusted EBITDA		442,830		175,709		(85,109)		533,430
Depreciation, depletion and amortization		99,171		20,231		925		120,327
Accretion on asset retirement obligation		2,030		17,675		2,043		21,748
Total assets		964,761		205,147		947,252		2,117,160
Capital expenditures		227,802		5,949		11,689		245,440

Year Ended December 31, 2020
Revenues	$	641,536	$	801,632	$	24,424	$	1,467,592
Adjusted EBITDA		91,322		34,035		(101,614)		23,743
Depreciation, depletion and amortization		91,202		28,351		1,999		121,552
Accretion on asset retirement obligation		1,943		15,368		2,576		19,887
Total assets		811,605		196,336		714,531		1,722,472
Capital expenditures		269,273		10,719		5,829		285,821

Year Ended December 31, 2019
Revenues	$	990,550	$	1,292,952	$	10,850	$	2,294,352
Adjusted EBITDA		305,363		152,023		(94,219)		363,167
Depreciation, depletion and amortization		74,211		35,224		2,186		111,621
Accretion on asset retirement obligation		2,123		14,955		3,470		20,548
Total assets		625,134		361,871		880,751		1,867,756
Capital expenditures		211,718		49,508		5,130		266,356

A reconciliation of segment Adjusted EBITDA to net income (loss):


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
(In thousands)	2021		2020		2019
Net income (loss)	$	337,573	$	(344,615)	$	233,799
Provision for (benefit from) income taxes		1,874		(7)		248
Interest expense, net		23,344		10,624		6,794
Depreciation, depletion and amortization		120,327		121,552		111,621
Accretion on asset retirement obligations		21,748		19,887		20,548
Costs related to proposed joint venture with Peabody Energy		—		16,087		13,816
Asset impairment and restructuring		—		221,380		—
Gain on property insurance recovery related to Mountain Laurel longwall		—		(23,518)		—
Loss (Gain) on divestitures		24,225		(1,505)		13,312
Preference Rights Lease Application settlement income		—		—		(39,000)
Non-service related pension and postretirement benefit costs		4,339		3,884		2,053
Reorganization items, net		—		(26)		(24)
Adjusted EBITDA	$	533,430	$	23,743	$	363,167
EBITDA from idled or otherwise disposed operations		2,469		15,858		12,926
Selling, general and administrative expenses		92,342		82,397		95,781
Other		(9,702)		3,359		(14,488)
Segment Adjusted EBITDA from coal operations	$	618,539	$	125,357	$	457,386

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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+ Details

Subsequent Events

12 Months Ended

Dec. 31, 2021

Subsequent Event.

Subsequent Event

28. Subsequent Event

Through February 16, 2022, the Company repaid $271.3 million of outstanding Term Loans, leaving $9.5 million outstanding. Arch plans to leave the remaining Term Loans outstanding to preserve the facility’s terms and conditions, which are incorporated into governing other Arch’s indebtedness. After the Term Loan pay-downs, total debt outstanding is approximately $300.0 million (excluding debt issuance costs) on a comparable basis to the December 31, 2021 reported balance. The Company’s current cash and liquidity level is sufficient to fund the business and meet both short-term and long-term requirements and obligations, especially in light of reduced capital spending requirements.

Arch plans to implement a new shareholder capital return model in the second quarter of 2022 based on first quarter results. The company expects to pay a variable rate cash dividend quarterly while continuing the existing fixed-rate cash dividend. Any such dividend payments are subject to board approval and declaration.

In advance of the implementing its new shareholder capital return program, the Arch board declared a quarterly cash dividend payment of $0.25 per share payable on March 15, 2022 to stockholders of record on February 28, 2022.

Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2021

Valuation and Qualifying Accounts

Valuation and Qualifying Accounts

Valuation and Qualifying Accounts


			Additions
			(Reductions)
	Balance at		Charged to		Charged to					Balance at
	Beginning of		Costs and		Other					End of
	Year		Expenses		Accounts			Deductions ^(a)		Year

	(In thousands)

Year Ended December 31, 2021
Reserves deducted from asset accounts:
Accounts receivable and other receivables	$	10,636		—		—			^—	$	10,636
Current assets — supplies and inventory		574		1,860		—	^(b)		185		2,249
Deferred income taxes		573,995		(69,603)		—	^(c)		—		504,392
Year Ended December 31, 2020
Reserves deducted from asset accounts:
Accounts receivable and other receivables	$	10,636		—		—			^—	$	10,636
Current assets — supplies and inventory		2,216		477		(137)	^(b)		1,982		574
Deferred income taxes		506,316		76,524		(8,845)	^(c)		—		573,995
Year Ended December 31, 2019
Reserves deducted from asset accounts:
Accounts receivable and other receivables	$	—		—		10,636	^(b)		^—	$	10,636
Current assets — supplies and inventory		648		1,737		(35)	^(b)		134		2,216
Deferred income taxes		530,612		(24,296)		—			—		506,316

(a)	Reserves utilized, unless otherwise indicated.

(b)	Disposition of subsidiaries.

Accounting Policies (Policies)	12 Months Ended
Accounting Policies (Policies)	Dec. 31, 2021
Accounting Policies
Accounting Estimates	Accounting Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and revenues and expenses in the accompanying consolidated financial statements and the disclosure of contingent assets and liabilities. Actual results could differ from those estimates.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents are stated at cost. Cash equivalents consist of highly-liquid investments with an original maturity of three months or less when purchased and investments in commercial paper which the Company classifies as cash and cash equivalents.
Restricted Cash	Restricted Cash Amounts included in restricted cash represent required deposits for a performance bid bond for a potential customer for $1.1 million as of December 31, 2021. Amounts of $6.0 million included in restricted cash held in trust related to the Tax Exempt Bonds as of December 31, 2020.
Accounts Receivable	Accounts Receivable Accounts receivable are recorded at amounts that are expected to be collected, based on past collection history, the economic environment and specified risks identified in the receivables portfolio.
Inventories	Inventories Coal and supplies inventories are valued at the lower of average cost or market. Coal inventory costs include labor, supplies, equipment costs, transportation costs incurred prior to the transfer of title to customers and operating overhead. The costs of removing overburden, called stripping costs, incurred during the production phase of the mine are considered variable production costs and are included in the cost of the coal extracted during the period the stripping costs are incurred.
Investments and Membership Interests in Joint Ventures	Investments and Membership Interests in Joint Ventures Investments and membership interests in joint ventures are accounted for under the equity method of accounting if the Company has the ability to exercise significant influence, but not control, over the entity. The Company’s share of the entity’s income or loss is reflected in “Other operating loss (income), net” in the Consolidated Statements of Operations. Information about investment activity is provided in Note 11 to the Consolidated Financial Statements, “Equity Method Investments and Membership Interests in Joint Ventures.” Investments in debt securities and marketable equity securities that do not qualify for equity method accounting are classified as available-for-sale and are recorded at their fair values. Unrealized gains and losses on these investments are recorded in other comprehensive income or loss. A decline in the value of an investment that is considered other-than-temporary would be recognized in operating expenses.
Exploration Costs	Exploration Costs Costs to acquire permits for exploration activities are capitalized. Drilling and other costs related to locating coal deposits and evaluating the economic viability of such deposits are expensed as incurred.
Prepaid Royalties	Prepaid Royalties Leased mineral rights are often acquired through royalty payments. When royalty payments represent prepayments recoupable against royalties owed on future revenues from the underlying coal, they are recorded as a prepaid asset, with amounts expected to be recouped within one year classified as current. When coal from these leases is sold, the royalties owed are recouped against the prepayment and charged to cost of sales. An impairment charge is recognized for prepaid royalties that are not expected to be recouped.
Property, Plant and Equipment	Property, Plant and Equipment Plant and Equipment Plant and equipment were recorded at fair value at emergence during fresh start accounting; subsequent purchases of property, plant and equipment have been recorded at cost. Interest costs incurred during the construction period for major asset additions are capitalized. The Company capitalized $18.6 million and $11.9 million of interest costs during years ended December 31, 2021 and 2020, respectively. Expenditures that extend the useful lives of existing plant and equipment or increase the productivity of the asset are capitalized. The cost of maintenance and repairs that do not extend the useful life or increase the productivity of the asset is expensed as incurred. Preparation plants and loadouts are depreciated using the units-of-production method over the estimated recoverable reserves, subject to a minimum level of depreciation. Other plant and equipment are depreciated principally using the straight-line method over the estimated useful lives of the assets, limited by the remaining life of the mine. The useful lives of mining equipment, including longwalls, draglines and shovels, range from 1 to 16 years. The useful lives of buildings and leasehold improvements generally range from 3 to 20 years. Deferred Mine Development Costs of developing new mines or significantly expanding the capacity of existing mines are capitalized and amortized using the units-of-production method over the estimated recoverable reserves that are associated with the property being benefited. Costs may include construction permits and licenses; mine design; construction of access roads, shafts, slopes and main entries; and removing overburden to access reserves in a new pit. Additionally, deferred mine development includes the asset cost associated with asset retirement obligations. Coal sales revenue related to incidental production during the development phase is recorded as coal sales revenue with an offset to cost of coal sales based on the estimated cost per ton sold for the mine when the asset is in place for its intended use. Coal Lands and Mineral Rights Rights to coal reserves may be acquired directly through governmental or private entities. A significant portion of the Company’s coal reserves are controlled through leasing arrangements. Lease agreements are generally long-term in nature (original terms range from 10 to 50 years), and substantially all of the leases contain provisions that allow for automatic extension of the lease term providing certain requirements are met. Leases of mineral reserves and related land leases are exempt from the provisions of the leasing standard. The net book value of the Company’s coal interests was $259.8 million and $290.3 million at December 31, 2021 and 2020, respectively. Payments to acquire royalty lease agreements and lease bonus payments are capitalized as a cost of the underlying mineral reserves and depleted over the life of proven and probable reserves. Coal lease rights are depleted using the units-of-production method, and the rights are assumed to have no residual value. The Company currently does not have any future lease bonus payments. Depreciation, depletion and amortization The depreciation, depletion and amortization related to long-lived assets is reflected in the Consolidated Statements of Operations as a separate line item. No depreciation, depletion or amortization is included in any other operating cost categories. Impairment If facts and circumstances suggest that the carrying value of a long-lived asset or asset group may not be recoverable, the asset or asset group is reviewed for potential impairment. If this review indicates that the carrying amount of the asset will not be recoverable through projected undiscounted cash flows generated by the asset and its related asset group over its remaining life, then an impairment loss is recognized by reducing the carrying value of the asset to its fair value. The Company may, under certain circumstances, idle mining operations in response to market conditions or other factors. Because an idling is not a permanent closure, it is not considered an automatic indicator of impairment. For information on Impairment, see Note 5 to the Consolidated Financial Statements, “Asset impairment and restructuring.”
Deferred Financing Costs	Deferred Financing Costs The Company capitalizes costs incurred in connection with new borrowings, the establishment or enhancement of credit facilities and the issuance of debt securities. These costs are amortized as an adjustment to interest expense over the life of the borrowing or term of the credit facility using the effective interest method. Debt issuance costs related to a recognized liability are presented in the balance sheet as a direct reduction from the carrying amount of that liability whereas debt issuance costs related to a credit facility with no balance outstanding are shown as an asset. The unamortized balance of deferred financing costs shown as an asset was $1.2 million at December 31, 2021, with $0.7 million classified as current; the unamortized balance of deferred financing costs shown as an asset at December 31, 2020 was $1.9 million with $0.7 million classified as current. The current amounts are classified within “Other current assets” and the noncurrent amounts are classified within “Other noncurrent assets.” For information on the unamortized balance of deferred financing fees related to outstanding debt, see Note 14 to the Consolidated Financial Statements, “Debt and Financing Arrangements.”
Revenue Recognition	Revenue Recognition Revenues include sales to customers of coal produced at Company operations and coal purchased from third parties. The Company recognizes revenue at the time risk of loss passes to the customer at contracted amounts. Transportation costs are included in cost of sales and amounts billed by the Company to its customers for transportation are included in revenues. Control of the goods may transfer and revenue may be recognized before, during or subsequent to the period in which final average pricing is determined. For all metallurgical coal sales under average pricing contracts where pricing is not finalized when revenue is recognized, revenue is recorded based on estimated consideration to be received at the date of the sale with reference to metallurgical coal price assessments. The Company generally retains title to these products until we receive the first contracted payment, which is typically received shortly after loading, solely to manage the credit risk of the amounts due to the Company. This retention of title does not preclude the customer from obtaining control of the product.
Other Operating Loss (Income), net	Other Operating Loss (Income), net Other operating loss (income), net in the accompanying Consolidated Statements of Operations reflects income and expense from sources other than physical coal sales, including: contract settlements; royalties earned from properties leased to third parties; income from equity investments (Note 11, “Equity Method Investments and Membership Interests in Joint Ventures”); non-material gains and losses from divestitures and dispositions of assets; and realized gains and losses on derivatives that do not qualify for hedge accounting and are not held for trading purposes (Note 12, “Derivatives”); and land management expenses.
Asset Retirement Obligations	Asset Retirement Obligations The Company’s legal obligations associated with the retirement of long-lived assets are recognized at fair value at the time the obligations are incurred. Accretion expense is recognized through the expected settlement date of the obligation. Obligations are incurred at the time development of a mine commences for underground and surface mines or construction begins for support facilities, refuse areas and slurry ponds. The obligation’s fair value is determined using a discounted cash flow technique and is based upon permit requirements and various estimates and assumptions that would be used by market participants, including estimates of disturbed acreage, reclamation costs and assumptions regarding equipment productivity. Upon initial recognition of a liability, a corresponding amount is capitalized as part of the carrying value of the related long-lived asset. The Company reviews its asset retirement obligation at least annually and makes necessary adjustments for permit changes as granted by state authorities and for revisions of estimates of the amount and timing of costs. For ongoing operations, adjustments to the liability result in an adjustment to the corresponding asset. For idle operations, adjustments to the liability are recognized as income or expense in the period the adjustment is recorded. Any difference between the recorded obligation and the actual cost of reclamation is recorded in profit or loss in the period the obligation is settled. See additional discussion in Note 16 to the Consolidated Financial Statements, “Asset Retirement Obligations.”
Loss Contingencies	Loss Contingencies The Company accrues for cost related to contingencies when a loss is probable and the amount is reasonably determinable. Disclosure of contingencies is included in the financial statements when it is at least reasonably possible that a material loss or an additional material loss in excess of amounts already accrued may be incurred. The amount accrued represents the Company’s best estimate of the loss, or, if no best estimate within a range of outcomes exists, the minimum amount in the range.
Derivative Instruments	Derivative Instruments The Company generally utilizes derivative instruments to manage exposures to commodity prices and interest rate risk on long-term debt. Derivative financial instruments are recognized on the balance sheet at fair value. Certain coal contracts may meet the definition of a derivative instrument, but because they provide for the physical purchase or sale of coal in quantities expected to be used or sold by the Company over a reasonable period in the normal course of business, they are not recognized on the balance sheet. Certain derivative instruments are designated as the hedge instrument in a hedging relationship. In a fair value hedge, the Company hedges the risk of changes in the fair value of a firm commitment, typically a fixed-price coal sales contract. Changes in both the hedged firm commitment and the fair value of a derivative used as a hedge instrument in a fair value hedge are recorded in earnings. In a cash flow hedge, the Company hedges the risk of changes in future cash flows related to the underlying item being hedged. Changes in the fair value of the derivative instrument used as a hedge instrument in a cash flow hedge are recorded in other comprehensive income or loss. Amounts in other comprehensive income or loss are reclassified to earnings when the hedged transaction affects earnings and are classified in a manner consistent with the transaction being hedged. The Company formally documents the relationships between hedging instruments and the respective hedged items, as well as its risk management objectives for hedge transactions. The Company evaluates the effectiveness of its hedging relationships both at the hedge’s inception and on an ongoing basis. Any ineffective portion of the change in fair value of a derivative instrument used as a hedge instrument in a fair value or cash flow hedge is recognized immediately in earnings. The ineffective portion is based on the extent to which exact offset is not achieved between the change in fair value of the hedge instrument and the cumulative change in expected future cash flows on the hedged transaction from inception of the hedge in a cash flow hedge or the change in the fair value. Ineffectiveness was insignificant for the periods disclosed within. See Note 12 to the Consolidated Financial Statements, “Derivatives” for further disclosures related to the Company’s derivative instruments.
Fair Value	Fair Value Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly hypothetical transaction between market participants at a given measurement date. Valuation techniques used must maximize the use of observable inputs and minimize the use of unobservable inputs. See Note 17 to the Consolidated Financial Statements, “Fair Value Measurements” for further disclosures related to the Company’s recurring fair value estimates.
Income Taxes	Income Taxes Deferred income taxes are provided for temporary differences arising from differences between the financial statement and tax basis of assets and liabilities existing at each balance sheet date using enacted tax rates anticipated to be in effect when the related taxes are expected to be paid or recovered. A valuation allowance is established if it is more likely than not that a deferred tax asset will not be realized. Management reassesses the ability to realize its deferred tax assets annually in the fourth quarter or when circumstances indicate that the ability to realize deferred tax assets has changed. In determining the need for a valuation allowance, the Company considers projected realization of tax benefits based on expected levels of future taxable income, available tax planning strategies and the reversal of temporary differences. Benefits from tax positions that are uncertain are not recognized unless the Company concludes that it is more likely than not that the position would be sustained in a dispute with taxing authorities, should the dispute be taken to the court of last resort. The Company would measure any such benefit at the largest amount of benefit that is greater than 50% likely of being realized upon settlement with taxing authorities. See Note 15 to the Consolidated Financial Statements, “Taxes” for further disclosures about income taxes.
Benefit Plans	Benefit Plans The Company has non-contributory defined benefit pension plans covering most of its salaried and hourly employees. On January 1, 2015 the Company’s cash balance and excess pension plans were amended to freeze new service credits for any new or active employees. The Company also currently provides certain postretirement medical and life insurance coverage for eligible employees. The cost of providing these benefits is determined on an actuarial basis and accrued over the employees’ period of active service. The Company recognizes the overfunded or underfunded status of these plans as determined on an actuarial basis on the balance sheet and the changes in the funded status are recognized in other comprehensive income. The Company amortizes actuarial gains and losses over the remaining service attribution periods of the employees using the corridor method. See Note 21 to the Consolidated Financial Statements, “Employee Benefit Plans” for additional disclosures relating to these obligations.
Stock-Based Compensation	Stock-Based Compensation The compensation cost of all stock-based awards is determined based on the grant-date fair value of the award, and is recognized over the requisite service period. The grant-date fair value of option awards and restricted stock awards with a market condition is determined using a Monte Carlo simulation. Compensation cost for an award with performance conditions is accrued if it is probable that the conditions will be met. The Company accounts for forfeitures as they occur. See further discussion in Note 19 to the Consolidated Financial Statements, “Stock-Based Compensation and Other Incentive Plans.”
Recently Adopted Accounting Guidance	Recently Adopted Accounting Guidance In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." The amendments provide optional guidance for a limited time to ease the potential burden in accounting for reference rate reform. The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. We are currently evaluating our contracts and the optional expedients provided by the new standard. In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes.” ASU 2019-12 eliminates certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The ASU is effective for public companies for fiscal years beginning after December 15, 2020, and interim periods therein with early adoption permitted. The Company adopted this ASU with minimal impact to the Company’s financial statements. Recently Adopted Accounting Guidance Not Yet Effective In August 2020, the FASB issued ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own Equity (Subtopic 815-40)—Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. ASU 2020-06 reduces the number of accounting models for convertible debt instruments and convertible preferred stock. For convertible instruments with conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital, the embedded conversion features no longer are separated from the host contract. ASU 2020-06 also removes certain conditions that should be considered in the derivatives scope exception evaluation under Subtopic 815-40, Derivatives and Hedging—Contracts in Entity’s Own Equity, and clarify the scope and certain requirements under Subtopic 815-40. In addition, ASU 2020-06 improves the guidance related to the disclosures and earnings-per-share (EPS) for convertible instruments and contract in entity’s own equity. ASU 2020-06 is effective for public business entities that meet the definition of a Securities and Exchange Commission (SEC) filer, excluding entities eligible to be smaller reporting companies as defined by the SEC, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Upon adoption using the modified retrospective approach in the first quarter of 2022, the Company will no longer have a separate liability and equity component for the Convertible Debt. The total Convertible Debt of $155.3 million will be classified as debt on the Company’s Consolidated Financial Statements. Additionally, this guidance will decrease interest expense and will require the application of the “if-converted” method to calculate the impact of convertible instruments on diluted earnings per share.

Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss).

Schedule of Accumulated Other Comprehensive Income (Loss)


			Pension,
			Postretirement				Accumulated
			and Other Post-				Other
	Derivative		Employment		Available-for-		Comprehensive
	Instruments		Benefits		Sale Securities		Income (loss)

	(In thousands)
January 1, 2020	$	(2,564)	$	8,273	$	(20)	$	5,689
Unrealized gains (losses)		(3,076)		(38,533)		(66)		(41,675)
Amounts reclassified from accumulated other comprehensive income (loss)		1,749		(1,199)		(265)		285
Balance at December 31, 2020	$	(3,891)	$	(31,459)	$	(351)	$	(35,701)
Unrealized gains (losses)		200		47,159		191		47,550
Amounts reclassified from accumulated other comprehensive income (loss)		1,928		403		(22)		2,309
Balances at December 31, 2021	$	(1,763)	$	16,103	$	(182)	$	14,158

Schedule of Comprehensive Income Reclassifications


	December 31,		December 31,		Line Item in the Consolidated
Details About AOCI Components	2021		2020		Statements of Operations

Coal hedges	$	—	$	392	Revenues
Interest rate hedges		(1,928)		(2,141)	Interest expense
		—		—	Provision for (benefit from) income taxes
	$	(1,928)	$	(1,749)	Net of tax

Pension, postretirement and other post-employment benefits
Amortization of actuarial gains (losses), net ¹	$	(2,361)	$	191	Non-service related pension and postretirement benefit (costs) credits
Amortization of prior service credits		190		112	Non-service related pension and postretirement benefit (costs) credits
Pension settlement		1,768		896	Non-service related pension and postretirement benefit (costs) credits
		—		—	Provision for (benefit from) income taxes
	$	(403)	$	1,199	Net of tax

Available-for-sale securities ²	$	22	$	265	Interest and investment income
		—		—	Provision for (benefit from) income taxes
	$	22	$	265	Net of tax

¹ Production-related benefits and workers’ compensation costs are included in costs to produce coal.

² The gains and losses on sales of available-for-sale-securities are determined on a specific identification basis.

Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Inventories

Inventories


	December 31,		December 31,
	2021		2020

	(In thousands)
Coal	$	75,653	$	49,436
Repair parts and supplies		81,081		76,572
	$	156,734	$	126,008

Investments in Available-for-Sale Securities (Tables)

12 Months Ended

Dec. 31, 2021

Investments in Available-for-Sale Securities

Available-for-sale Securities


	December 31, 2021

			Gross					Allowance
			Unrealized					for - Credit	Fair
	Cost Basis		Gains		Losses			Losses	Value

	(In thousands)
Available-for-sale:
U.S. government and agency securities	$	6,074	$	—	$	(71)	$	—	$	6,003
Corporate notes and bonds		8,571		—		(111)		—		8,460
Total Investments	$	14,645	$	—	$	(182)	$	—	$	14,463


	December 31, 2020

			Gross					Allowance
			Unrealized					for - Credit	Fair
	Cost Basis		Gains			Losses		Losses	Value

	(In thousands)
Available-for-sale:
U.S. government and agency securities	$	57,299	$	11	$	(86)	$	—	$	57,224
Corporate notes and bonds		39,817		1		(277)		—		39,541
Total Investments	$	97,116	$	12	$	(363)	$	—	$	96,765

Equity Method Investments and Membership Interests in Joint Ventures (Tables)

12 Months Ended

Dec. 31, 2021

Equity Method Investments and Membership Interests in Joint Ventures

Schedule Of Equity Method Investments


	Knight
(In thousands)	Hawk		DTA		Total

December 31, 2019	$	90,211	$	15,377	$	105,588
Advances to (distributions from) affiliates, net		(4,235)		1,549		(2,686)
Equity in comprehensive income (loss)		4,576		(1,228)		3,348
Additional interest in Knight Hawk		1,700		—		1,700
Impairment of equity investment		(36,167)		—		(36,167)
December 31, 2020	$	56,085	$	15,698	$	71,783
Advances to (distributions from) affiliates, net		(7,886)		3,303		(4,583)
Equity in comprehensive income (loss)		14,026		(3,598)		10,428
Sale of Equity investment		(62,225)		—		(62,225)

December 31, 2021	$	—	$	15,403	$	15,403

Derivatives (Tables)

12 Months Ended

Dec. 31, 2021

Derivatives

Schedule of Price Risk Derivatives


(Tons in thousands)		2022
Coal sales		165
Coal purchases		33

Disclosure of Fair Value of Derivatives


	December 31, 2021						December 31, 2020
Fair Value of Derivatives	Asset		Liability				Asset		Liability
(In thousands)	Derivative		Derivative				Derivative		Derivative
Derivatives Designated as Hedging Instruments
Coal	$	—	$	—			$	—	$	—

Derivatives Not Designated as Hedging Instruments
Heating oil -- diesel purchases		1,219		—				237		—
Coal -- held for trading purposes		—		—				1,914		(1,595)
Coal -- risk management		4,885		(2,203)				1,094		(804)
Total	$	6,104	$	(2,203)			$	3,245	$	(2,399)
Total derivatives	$	6,104	$	(2,203)			$	3,245	$	(2,399)
Effect of counterparty netting		(1,890)		1,890				(2,392)		2,392
Net derivatives as classified in the balance sheets	$	4,214	$	(313)	$	3,901	$	853	$	(7)	$	846


		December 31,		December 31,
		2021		2020
Net derivatives as reflected on the balance sheets (in thousands)
Heating Oil and coal	Other current assets	$	4,214	$	853
Coal	Accrued expenses and other current liabilities		(313)		(7)
		$	3,901	$	846

Effects of Derivatives on Measures of Financial Performance

Derivatives used in Cash Flow Hedging Relationships (in thousands)

For the noted periods,


		Gain (Loss) Recognized in Other Comprehensive
		Income (Effective Portion)
		Year Ended		Year Ended		Year Ended
		December 31,		December 31,		December 31,
		2021		2020		2019
Coal sales	⁽¹⁾	$	—	$	500	$	10,249
Coal purchases	⁽²⁾		—		(496)		(1,231)
		$	—	$	4	$	9,018


	Gains (Losses) Reclassified from Other
	Comprehensive Income into Income
	(Effective Portion)
	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019
Coal sales	$	—	$	(1,850)	$	10,167
Coal purchases		—		1,458		(686)
	$	—	$	(392)	$	9,481

Derivatives Not Designated as Hedging Instruments (in thousands)

For the noted periods,


		Gain (Loss) Recognized
		Year Ended		Year Ended		Year Ended
		December 31,		December 31,		December 31,
		2021		2020		2019
Coal trading— realized and unrealized	⁽³⁾	$	—	$	222	$	(1,013)
Coal risk management— unrealized	⁽³⁾		2,392		(5,517)		19,713
Natural gas trading — realized and unrealized	⁽³⁾		—		76		(99)
Change in fair value of coal derivatives and coal trading activities, net total		$	2,392	$	(5,219)	$	18,601

Coal risk management — realized	⁽⁴⁾	$	(27,464)	$	9,258	$	487
Heating oil — diesel purchases	⁽⁴⁾	$	—	$	(558)	$	(2,291)

Location in income statement:

(1)

— Revenues

(2)

— Cost of sales

(3)

— Change in fair value of coal derivatives and coal trading activities, net

(4)

— Other operating income, net

Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Accrued Expenses and Other Current Liabilities.

Schedule of Accrued Expenses and Other Current Liabilities


	December 31,		December 31,
	2021		2020

	(In thousands)
Payroll and employee benefits	$	55,898	$	39,443
Taxes other than income taxes		61,582		56,232
Interest		3,439		2,795
Workers’ compensation		14,202		15,259
Asset retirement obligations		21,781		27,032
Other		10,402		14,495
	$	167,304	$	155,256

Debt and Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2021

Debt and Financing Arrangements

Schedule of Long-term debt


	December 31,		December 31,
	2021		2020

	(In thousands)
Term loan due 2024 ($280.9 million face value)	$	280,353	$	288,033
Tax Exempt Bonds ($98.1 million face value)		98,075		53,090
Convertible Debt ($155.3 million face value)		121,617		115,367
Other		70,836		62,695
Debt issuance costs		(10,208)		(10,873)
		560,673		508,312
Less: current maturities of debt		223,050		31,097
Long-term debt	$	337,623	$	477,215

Schedule of Interest Rate Derivatives

Below is a summary of the Company’s outstanding interest rate swap agreements designated as hedges as of December 31, 2021:


Notional Amount
(in millions)		Effective Date	Fixed Rate		Receive Rate	Expiration Date

$	100.0	June 30, 2021	2.315	%	1-month LIBOR	June 30, 2023

Schedule of Maturities of Long-term Debt


Year	(In thousands)
2022	$	107,733
2023		22,304
2024		213,934
2025		261,090
2026		—
Thereafter		—
	$	605,061

Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Taxes

Schedule of Components of Income Tax Expense (Benefit)


		Year Ended		Year Ended	Year Ended
		December 31,		December 31,	December 31,
		2021		2020	2019
(In thousands)
Current:
Federal	$	1,525	$	518	$	(36)
State		342		(569)		124
Total current	$	1,867	$	(51)	$	88
Deferred:
Federal	$	7	$	44	$	667
State		—		—		(507)
Total deferred	$	7	$	44	$	160
	$	1,874	$	(7)	$	248

Schedule of Effective Income Tax Rate Reconciliation


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019

Income tax provision (benefit) at statutory rate	$	71,284	$	(72,371)	$	49,150
Percentage depletion and other perm items		(29,392)		(7,763)		(17,743)
State taxes, net of effect of federal taxes		16,490		(3,298)		(12,769)
Change in valuation allowance		(69,603)		76,524		(24,206)
Other, net		13,095		6,901		5,816
Provision for (benefit from) income taxes	$	1,874	$	(7)	$	248

Schedule of Deferred Tax Assets and Liabilities


	December 31,		December 31,
	2021		2020
(In thousands)
Deferred tax assets:
Tax loss carryforwards	$	326,763	$	352,342
Tax credit carryforwards		2,565		3,117
Investment in partnerships		170,610		213,478
Other		17,263		19,377
Gross deferred tax assets	$	517,201	$	588,314
Valuation allowance		(504,392)		(573,995)
Total deferred tax assets	$	12,809	$	14,319
Deferred tax liabilities:
Plant and equipment		467		1,219
Convertible Notes		7,008		8,845
Other		5,304		4,218
Total deferred tax liabilities	$	12,779	$	14,282
Net deferred tax asset	$	30	$	37

Summary of Income Tax Contingencies


	(In thousands)
Balance at December 31, 2018	$	39,093
Additions based on tax positions to the current year		2,980
Reductions for tax positions of prior years		(1,970)
Reductions as a result of lapses in the statute of limitations		(374)
Balance at December 31, 2019		39,729
Additions for tax positions related to the current year		1,583
Additions for tax positions related to the prior year		7,918
Reductions for tax positions of prior years		(732)
Reductions as a result of lapses in the statute of limitations		(382)
Balance at December 31, 2020		48,116
Additions based on tax positions to the current year		3,467
Additions for tax positions related to the prior year		3,931
Reductions for tax positions of prior years		(2,868)
Reductions as a result of lapses in the statute of limitations		(3,683)
Balance at December 31, 2021	$	48,963

Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Asset Retirement Obligation

Schedule of Change in Asset Retirement Obligation


	Year Ended		Year Ended
	December 31,		December 31,
	2021		2020
(In thousands)
Balance at beginning of period (including current portion)	$	257,764	$	252,798
Accretion expense		21,748		19,887
Obligations of divested operations		—		(15,455)
Adjustments to the liability from changes in estimates		(26,012)		14,889
Reclamation work completed		(39,047)		(14,355)
Balance at period end	$	214,453	$	257,764
Current portion included in accrued expenses		(21,781)		(27,032)
Noncurrent liability	$	192,672	$	230,732

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Measurements

Summary of Financial Assets and Liabilities Accounted for at Fair Value


	December 31, 2021
	Total		Level 1		Level 2		Level 3

	(In thousands)
Assets:
Investments in marketable securities	$	14,463	$	6,003	$	8,460	$	—
Derivatives		4,214		—		2,995		1,219
Total assets	$	18,677	$	6,003	$	11,455	$	1,219
Liabilities:
Derivatives	$	2,077	$	313	$	1,764	$	—


	Fair Value at December 31, 2020
	Total		Level 1		Level 2		Level 3

	(In thousands)
Assets:
Investments in marketable securities	$	96,765	$	57,224	$	39,541	$	—
Derivatives		853		21		832		—
Total assets	$	97,618	$	57,245	$	40,373	$	—
Liabilities:
Derivatives	$	3,899	$	7	$	3,892	$	—

Summary of Change in the Fair Values of Financial Instruments Categorized as Level 3


	2021		2020
(In thousands)
Balance, beginning of period	$	—	$	61
Realized and unrealized (gains) losses recognized in earnings, net		—		(1,158)
Purchases		1,219		1,235
Issuances		—		(138)
Settlements		—		—
Ending balance	$	1,219	$	—

Capital Stock (Tables)

12 Months Ended

Dec. 31, 2021

Capital Stock

Dividends declared and paid


2021:	Dividends per share		Amount (in thousands)
1st quarter	$	—	$	—
2nd quarter		—		—
3rd quarter		—		—
4th quarter		0.25		3,830
Total cash dividends declared and paid	$	0.25	$	3,830


			Amount
2020:	Dividends per share		(in thousands)
1st quarter	$	0.50	$	8,245
2nd quarter		—		—
3rd quarter		—		—
4th quarter		—		—
Total cash dividends declared and paid	$	0.50	$	8,245

Stock-Based Compensation and Other Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2021

Stock-Based Compensation and Other Incentive Plans

Schedule of Restricted Stock Units Activity


	Time Based Awards			Performance Based Awards
		Weighted			Weighted
		Average			Average
	Restricted	Grant-Date		Restricted	Grant-Date
	Stock Units	Fair Value		Stock Units	Fair Value
(Shares in thousands)
Outstanding at January 1, 2021	341	$	64.38	286	$	71.44
Granted	286		67.21	164		58.74
Forfeited/Canceled	(9)		57.70	(100)		105.95
Vested	(189)		75.27	(9)		135.34
Unvested outstanding at December 31, 2021	429	$	61.60	341	$	53.49

Workers' Compensation Expense (Tables)

12 Months Ended

Dec. 31, 2021

Workers' Compensation Expense

Workers' compensation expense

Workers’ compensation expense consists of the following components:


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019

Self-insured occupational disease benefits:
Service cost	$	7,796	$	7,564	$	6,677
Interest cost⁽¹⁾		4,439		5,115		4,922
Net amortization⁽¹⁾		2,363		1,189		—
Total occupational disease	$	14,598	$	13,868	$	11,599
Traumatic injury claims and assessments		3,925		12,922		13,050
Total workers’ compensation expense	$	18,523	$	26,790	$	24,649

(1)

Schedule of Changes in Occupational Disease Obligations


	Year Ended		Year Ended
	December 31,		December 31,
(In thousands)	2021		2020
Beginning of period	$	183,001	$	158,325
Service cost		7,796		7,564
Interest cost		4,439		5,115
Actuarial (gain) loss		(21,245)		19,327
Benefit and administrative payments		(6,406)		(7,330)
	$	167,585	$	183,001

Schedule of Occupational Disease Obligation Assumptions Used


	Year Ended December 31, 2021	Year Ended December 31, 2020
(Percentages)
Discount rate	2.82	2.48

Workers' compensation liabilities


	Year Ended		Year Ended
	December 31,		December 31,
	2021		2020
(In thousands)
Occupational disease costs	$	167,585	$	183,001
Traumatic and other workers’ compensation claims		70,722		76,953
Total obligations		238,307		259,954
Less amount included in accrued expenses		14,202		15,259
Noncurrent obligations	$	224,105	$	244,695

Schedule of expected future payments



Year	(In thousands)
2022	$	12,525
2023		12,883
2024		12,997
2025		13,318
2026		13,595
Next 5 years		33,849
	$	99,167

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2021

Employee Benefit Plans

Schedule of Pension Benefit Costs (Credits)


	Pension Benefits				Other Postretirement Benefits
	Year Ended		Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,		December 31,
	2021		2020		2021		2020
(In thousands)
CHANGE IN BENEFIT OBLIGATIONS
Benefit obligations at beginning of period	$	202,267	$	217,548	$	100,898	$	87,867
Service cost		—		—		341		419
Interest cost		4,334		5,498		2,113		2,392
Settlement gain		(1,768)		(896)		—		—
Curtailments		—		—		—		284
Plan Amendments		(341)		—		—		—
Benefits paid		(27,014)		(38,221)		(5,676)		(6,507)
Other-primarily actuarial (gain) loss		(7,502)		18,338		(18,431)		16,443
Benefit obligations at end of period	$	169,976	$	202,267	$	79,245	$	100,898
CHANGE IN PLAN ASSETS
Value of plan assets at beginning of period	$	199,248	$	211,802	$	—	$	—
Actual return on plan assets		5,117		23,055		—		—
Employer contributions		148		2,612		5,676		6,507
Benefits paid		(27,014)		(38,221)		(5,676)		(6,507)
Value of plan assets at end of period	$	177,499	$	199,248	$	—	$	—
Accrued benefit net asset (obiligation)	$	7,523	$	(3,019)	$	(79,245)	$	(100,898)
ITEMS NOT YET RECOGNIZED AS A COMPONENT OF NET PERIODIC BENEFIT COST
Prior service credit	$	1,091	$	880	$	—	$	—
Accumulated gain		16,102		10,790		20,657		2,226
	$	17,193	$	11,670		20,657	$	2,226
BALANCE SHEET AMOUNTS
Noncurrent asset	$	8,973	$	—	$	—	$	—
Current liability		(150)		(140)		(5,680)		(6,510)
Noncurrent liability		(1,300)		(2,879)		(73,565)		(94,388)
	$	7,523	$	(3,019)	$	(79,245)	$	(100,898)

Other Postretirement Benefit Costs


	Pension Benefits						Other Postretirement Benefits
	Year Ended		Year Ended		Year Ended		Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,		December 31,		December 31,		December 31,
	2021		2020		2019		2021		2020		2019
(In thousands)
Service cost	$	—	$	—	$	—	$	341	$	419	$	480
Interest cost⁽¹⁾		4,334		5,498		8,141		2,113		2,392		3,505
Curtailments		—		—		—		—		—		—
Settlements⁽¹⁾		(1,768)		(896)		(1,326)		—		—		—
Expected return on plan assets⁽¹⁾		(7,245)		(8,283)		(10,555)		—		—		—
Amortization of prior service credits⁽¹⁾		(190)		(112)		(24)		—		—		—
Amortization of other actuarial losses (gains) ⁽¹⁾		—		—		(11)		—		(1,379)		(2,974)
Net benefit cost (credit)	$	(4,869)	$	(3,793)	$	(3,775)	$	2,454	$	1,432	$	1,011

(1)

Schedule of Assumptions Used


	Year Ended	Year Ended
	December 31,	December 31,
	2021	2020
(Percentages)
Pension Benefits
Discount rate	2.67/2.49	2.19/1.96

Other Postretirement Benefits
Discount rate	2.63	2.17


	Year Ended	Year Ended	Year Ended
	December 31,	December 31,	December 31,
	2021	2020	2019
(Percentages)
Pension Benefits
Discount rate	2.50	2.72	3.65
Expected return on plan assets	4.30	4.65	5.10

Other Postretirement Benefits
Discount rate	2.17	3.09	4.12

Schedule of Allocation of Plan Assets


	Total				Level 1				Level 2				Level 3
	2021		2020		2021		2020		2021		2020		2021		2020

	(In thousands)
Equity Securities:^(A)
U.S. small-cap	$	—	$	2,287	$	—	$	2,287	$	—	$	—	$	—	$	—
U.S. mid-cap		—		2,890		—		2,890		—		—		—		—
Fixed income securities:
U.S. government securities^(B)		42,273		31,850		41,129		18,705		1,144		13,145		—		—
Non-U.S. government securities^(C)		333		1,612		—		—		333		1,612		—		—
Corporate fixed income^(D)		81,906		98,357		—		—		81,906		98,357		—		—
State and local government securities^(E)		2,514		2,962		—		—		2,514		2,962		—		—
Other investments^(G)		23,828		3,519		—		—		23,828		3,519		—		—
Total	$	150,854	$	143,477	$	41,129	$	23,882	$	109,725	$	119,595	$	—	$	—
Assets at net asset value^(F)		26,645		55,771
	$	177,499	$	199,248

(A)

(B)

U.S. government securities includes agency and treasury debt. These investments are valued using dealer quotes in an active market.

(C)

(D)

(E)

(F)

(G)

Schedule of Expected Benefit Payments


			Other
	Pension		Postretirement
	Benefits		Benefits

	(In thousands)
2022	$	11,245	$	5,968
2023		11,415		5,884
2024		11,476		5,617
2025		11,181		5,458
2026		10,892		5,275
Next 5 years		46,338		23,632
	$	102,547	$	51,834

Earnings (Loss) per Common Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings per Common Share

Schedule of Weighted Average Number of Shares


	Year Ended	Year Ended	Year Ended
	December 31,	December 31,	December 31,
	2021	2020	2019
(In Thousands)
Weighted average shares outstanding:
Basic weighted average shares outstanding	15,318	15,153	16,218
Effect of dilutive securities	2,261	—	1,080

Diluted weighted average shares outstanding	17,579	15,153	17,298

Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases

Schedule of right-of-use assets and lease liabilities


		December 31,		December 31,
		2021		2020
Assets	Balance Sheet Classification
Operating lease right-of-use assets	Other noncurrent assets	$	14,646	$	17,069
Financing lease right-of-use assets	Other noncurrent assets		4,215		5,512
Total Lease Assets		$	18,861	$	22,581

Liabilities	Balance Sheet Classification
Financing lease liabilities - current	Accrued expenses and other current liabilities	$	917	$	860
Operating lease liabilities - current	Accrued expenses and other current liabilities		2,606		2,454
Financing lease liabilities - long-term	Other noncurrent liabilities		4,097		5,014
Operating lease liabilities - long-term	Other noncurrent liabilities		12,713		15,278
		$	20,333	$	23,606

Weighted average remaining lease term in years
Operating leases			5.14		5.99
Finance leases			3.25		4.25

Weighted average discount rate
Operating leases			5.5%		5.5%
Finance leases			6.4%		6.4%

Schedule of Information Related to Leases


		Year Ended December 31,
		2021		2020

	(In thousands)
Operating lease information:
Operating lease cost		$	3,364	$	3,620
Operating cash flows from operating leases			3,377		3,610

Financing lease information:
Financing lease cost		$	1,572	$	1,179
Operating cash flows from financing leases			1,210		909

Schedule of Future Minimum Lease Payments

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:


	Operating		Finance
Year	Leases		Leases
	(In thousands)
2022	$	3,389	$	1,210
2023		3,356		1,210
2024		3,200		1,210
2025		3,185		2,111
2026		3,080		—
Thereafter		1,533		—
Total minimum lease payments	$	17,743	$	5,741
Less imputed interest		(2,424)		(727)

Total lease liabilities	$	15,319	$	5,014

Risk Concentrations (Tables)

12 Months Ended

Dec. 31, 2021

Risk Concentrations

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2021		2020		2019
(In thousands)
Europe	$	592,702	$	289,176	$	537,117
Asia		446,724		138,086		322,029
Central and South America		109,613		56,905		82,476
Africa		—		12,763		18,698
Total	$	1,149,039	$	496,930	$	960,320

Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Revenue Recognition

Schedule of effects of revenue recognition


					Corporate,
					Other and
	MET		Thermal		Eliminations		Consolidated

	(in thousands)
Year Ended December 31, 2021
North America revenues	$	163,833	$	893,741	$	1,429	$	1,059,003
Seaborne revenues		985,300		163,739		—		1,149,039

Total revenues	$	1,149,133	$	1,057,480	$	1,429	$	2,208,042

Year Ended December 31, 2020
North America revenues	$	173,508	$	772,730	$	24,424	$	970,662
Seaborne revenues		468,028		28,902		—		496,930

Total revenues	$	641,536	$	801,632	$	24,424	$	1,467,592

Year Ended December 31, 2019
North America revenues	$	217,381	$	1,105,801	$	10,850	$	1,334,032
Seaborne revenues		773,169		187,151		—		960,320

Total revenues	$	990,550	$	1,292,952	$	10,850	$	2,294,352

Segment Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Information

Schedule of Operating Segment Results


					Corporate,
					Other and
(In thousands)	MET		Thermal		Eliminations		Consolidated

Year Ended December 31, 2021
Revenues	$	1,149,133	$	1,057,480	$	1,429	$	2,208,042
Adjusted EBITDA		442,830		175,709		(85,109)		533,430
Depreciation, depletion and amortization		99,171		20,231		925		120,327
Accretion on asset retirement obligation		2,030		17,675		2,043		21,748
Total assets		964,761		205,147		947,252		2,117,160
Capital expenditures		227,802		5,949		11,689		245,440

Year Ended December 31, 2020
Revenues	$	641,536	$	801,632	$	24,424	$	1,467,592
Adjusted EBITDA		91,322		34,035		(101,614)		23,743
Depreciation, depletion and amortization		91,202		28,351		1,999		121,552
Accretion on asset retirement obligation		1,943		15,368		2,576		19,887
Total assets		811,605		196,336		714,531		1,722,472
Capital expenditures		269,273		10,719		5,829		285,821

Year Ended December 31, 2019
Revenues	$	990,550	$	1,292,952	$	10,850	$	2,294,352
Adjusted EBITDA		305,363		152,023		(94,219)		363,167
Depreciation, depletion and amortization		74,211		35,224		2,186		111,621
Accretion on asset retirement obligation		2,123		14,955		3,470		20,548
Total assets		625,134		361,871		880,751		1,867,756
Capital expenditures		211,718		49,508		5,130		266,356

Schedule of Reconciliation of Net Income (Loss) to Adjusted EBITDA


	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
(In thousands)	2021		2020		2019
Net income (loss)	$	337,573	$	(344,615)	$	233,799
Provision for (benefit from) income taxes		1,874		(7)		248
Interest expense, net		23,344		10,624		6,794
Depreciation, depletion and amortization		120,327		121,552		111,621
Accretion on asset retirement obligations		21,748		19,887		20,548
Costs related to proposed joint venture with Peabody Energy		—		16,087		13,816
Asset impairment and restructuring		—		221,380		—
Gain on property insurance recovery related to Mountain Laurel longwall		—		(23,518)		—
Loss (Gain) on divestitures		24,225		(1,505)		13,312
Preference Rights Lease Application settlement income		—		—		(39,000)
Non-service related pension and postretirement benefit costs		4,339		3,884		2,053
Reorganization items, net		—		(26)		(24)
Adjusted EBITDA	$	533,430	$	23,743	$	363,167
EBITDA from idled or otherwise disposed operations		2,469		15,858		12,926
Selling, general and administrative expenses		92,342		82,397		95,781
Other		(9,702)		3,359		(14,488)
Segment Adjusted EBITDA from coal operations	$	618,539	$	125,357	$	457,386

Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
Accounting Policies (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statutory Accounting Practices
Restricted Cash Current Customer Deposits	$ 1.1
Restricted cash held in trust related to the tax exempt bonds		$ 6.0
Interest costs capitalized	18.6	11.9
Mineral rights	259.8	290.3
Deferred finance costs, net	1.2	1.9
Deferred finance costs, current	0.7	$ 0.7
Accounting Standard Update 2020 06 [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Statutory Accounting Practices
Convertible Debt	$ 155.3
Minimum
Statutory Accounting Practices
Term of contract	1 year
Maximum
Statutory Accounting Practices
Term of contract	7 years
Exploration and production equipment \| Minimum
Statutory Accounting Practices
Estimated useful life	1 year
Exploration and production equipment \| Maximum
Statutory Accounting Practices
Estimated useful life	16 years
Building and building improvements \| Minimum
Statutory Accounting Practices
Estimated useful life	3 years
Building and building improvements \| Maximum
Statutory Accounting Practices
Estimated useful life	20 years
Mining properties and mineral rights \| Minimum
Statutory Accounting Practices
Term of contract	10 years
Mining properties and mineral rights \| Maximum
Statutory Accounting Practices
Term of contract	50 years

Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ 283,561	$ 640,536
Ending Balance	683,866	283,561
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(35,701)	5,689
Unrealized gains (losses)	47,550	(41,675)
Amounts reclassified from AOCI	2,309	285
Ending Balance	14,158	(35,701)
Derivative instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(3,891)	(2,564)
Unrealized gains (losses)	200	(3,076)
Amounts reclassified from AOCI	1,928	1,749
Ending Balance	(1,763)	(3,891)
Pension, postretirement and other post-employment benefits
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(31,459)	8,273
Unrealized gains (losses)	47,159	(38,533)
Amounts reclassified from AOCI	403	(1,199)
Ending Balance	16,103	(31,459)
Available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(351)	(20)
Unrealized gains (losses)	191	(66)
Amounts reclassified from AOCI	(22)	(265)
Ending Balance	$ (182)	$ (351)

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 4.E)
-URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Accumulated Other Comprehensive Income (Schedule of Reclassifications) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Revenues	$ 2,208,042	$ 1,467,592	$ 2,294,352
Interest expense	(23,972)	(14,432)	(16,485)
Interest and investment income	628	3,808	9,691
Income (loss) before income taxes	339,447	(344,622)	234,047
Provision for (benefit from) income taxes	(1,874)	7	(248)
Net income (loss)	337,573	(344,615)	$ 233,799
Reclassification out of Accumulated Other Comprehensive Income \| Derivative instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Revenues	0	392
Interest expense	(1,928)	(2,141)
Provision for (benefit from) income taxes	0	0
Net income (loss)	(1,928)	(1,749)
Reclassification out of Accumulated Other Comprehensive Income \| Pension, postretirement and other post-employment benefits
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amortization of actuarial gains (losses), net	2,361	(191)
Amortization of prior service credits	190	112
Pension settlement	1,768	896
Provision for (benefit from) income taxes	0	0
Net income (loss)	(403)	1,199
Reclassification out of Accumulated Other Comprehensive Income \| Available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest and investment income	22	265
Provision for (benefit from) income taxes	0	0
Net income (loss)	$ 22	$ 265

Divestitures (Details) $ in Thousands			1 Months Ended		3 Months Ended			12 Months Ended
Divestitures (Details) $ in Thousands	Dec. 13, 2019 USD ($)	Sep. 14, 2017 USD ($) company	Nov. 30, 2021	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss (Gain) on divestitures								$ 24,225	$ (1,505)	$ 13,312
Charge for bankruptcy claims						$ 4,300
Viper Mine \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss (Gain) on divestitures				$ (100)
Coal-Mac LLC \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale	$ 2,300
Loss (Gain) on divestitures	9,000
Disbursements related to landholder consent fees and professional fees	$ 200
Lone Mountain Processing LLC \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss (Gain) on divestitures		$ 21,300
Number of mining companies \| company		2
Dal-Tex and Briar Branch Properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss (Gain) on divestitures								24,225	$ (1,505)	$ 13,312
Dal-Tex and Briar Branch Properties \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration for sale							$ 0
Gain on disposal							$ 1,400
Knight Hawk
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest acquired				1.50%
Ownership interest				49.50%					49.50%
Knight Hawk \| Knight Hawk \| Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of ownership interest			49.50%
Notes receivable term					3 years
Notes receivable periodic payment receivable					$ 500			500
Notes Receivable, Related Parties					18,000			18,000
Consideration for sale					$ 20,000			38,000
Loss (Gain) on divestitures								$ 24,200
DTA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest					35.00%			35.00%

Asset Impairment and Restructuring (Details) $ in Thousands	3 Months Ended			6 Months Ended	12 Months Ended
Asset Impairment and Restructuring (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020 item	Jun. 30, 2020 item	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Property, Plant and Equipment [Line Items]
Severance Costs					$ 0	$ 13,400
Number of corporate staff accepted voluntary separation package \| item			254	254
Asset Impairment Charges And Mine Closure Costs						$ 221,380
Knight Hawk
Property, Plant and Equipment [Line Items]
Asset impairment charges		$ 36,200
Prior Equity Investment
Property, Plant and Equipment [Line Items]
Asset Impairment Charges And Mine Closure Costs	$ 10,000
Coal Creek Mine
Property, Plant and Equipment [Line Items]
Asset impairment charges		51,800
Asset Impairment Charges And Mine Closure Costs	$ 32,800
Viper Mine
Property, Plant and Equipment [Line Items]
Asset impairment charges		33,500
West Elk Mine
Property, Plant and Equipment [Line Items]
Asset impairment charges		$ 41,600

Joint Venture with Peabody Energy (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Implementation Agreement
Schedule of Equity Method Investments [Line Items]
Incurred expenses related to regulatory approval process	$ 0.0	$ 16.1

Gain on Property Insurance Recovery Related to Mountain Laurel Longwall (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) item	Jun. 30, 2020 item
Business Interruption Loss [Line Items]
Gain on Business Interruption Insurance Recovery		$ 23,518
Longwall system's not recoverable \| item			123
Hydraulic Shields not recoverable \| item		176
Mountain Laurel Longwall Operations
Business Interruption Loss [Line Items]
Gain on Business Interruption Insurance Recovery		$ 23,500
Amounts related to the property insurance recovery	$ 0

Preference Rights Lease Application Settlement Income (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2019	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2019	Dec. 31, 2020
Gain Contingencies [Line Items]
Gain related to settlement				$ 39,000
Preference Rights Lease Application (PRLA)
Gain Contingencies [Line Items]
Gain related to settlement		$ 39,000
Royalty credits to be received due to settlement			$ 67,000
Royalty credits to be received due to settlement, percentage of royalty obligations			50.00%
One-time payment for ownership interest	$ 27,000
Payment to acquire investment, closing fees	$ 1,000
Company utilization of royalty credits			$ 17,700	$ 13,300	$ 36,000

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventories
Coal	$ 75,653	$ 49,436
Repair parts and supplies	81,081	76,572
Inventories	156,734	126,008
Allowance for slow-moving and obsolete inventories	$ 2,300	$ 600

Investments in Available-for-Sale Securities (Schedule of Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Cost Basis	$ 14,645	$ 97,116
Available-for-sale, Gains		12
Available-for-sale, Losses	(182)	(363)
Available-for-sale, Fair Value	14,463	96,765
U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Cost Basis	6,074	57,299
Available-for-sale, Gains		11
Available-for-sale, Losses	(71)	(86)
Available-for-sale, Fair Value	6,003	57,224
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Cost Basis	8,571	39,817
Available-for-sale, Gains		1
Available-for-sale, Losses	(111)	(277)
Available-for-sale, Fair Value	$ 8,460	$ 39,541

Investments in Available-for-Sale Securities (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Investments in Available-for-Sale Securities
Unrealized losses owned for less than 12 months	$ 0.0	$ 45.3
Unrealized losses owed for over a year	$ 14.5	$ 8.1

Equity Method Investments and Membership Interests in Joint Ventures (Schedule of Equity Method Investments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	$ 71,783	$ 105,588
Advances to (distributions from) affiliates, net	(4,583)	(2,686)
Equity in comprehensive income (loss)	10,428	3,348
Sale of Equity investment	(62,225)
Additional interest in Knight Hawk		1,700
Impairment of equity investment		36,167
Ending Balance	15,403	71,783
Knight Hawk
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	56,085	90,211
Advances to (distributions from) affiliates, net	(7,886)	(4,235)
Equity in comprehensive income (loss)	14,026	4,576
Sale of Equity investment	(62,225)
Additional interest in Knight Hawk		1,700
Impairment of equity investment		36,167
Ending Balance		56,085
DTA
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	15,698	15,377
Advances to (distributions from) affiliates, net	3,303	1,549
Equity in comprehensive income (loss)	(3,598)	(1,228)
Ending Balance	$ 15,403	$ 15,698

Equity Method Investments and Membership Interests in Joint Ventures (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 30, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Non-cash loss on sale of equity method investments				$ (24,225)	$ 1,505	$ (13,312)
Knight Hawk
Schedule of Equity Method Investments [Line Items]
Ownership interest acquired		1.50%
Ownership interest		49.50%			49.50%
Knight Hawk \| Knight Hawk \| Sale
Schedule of Equity Method Investments [Line Items]
Percentage of ownership interest	49.50%
Consideration for sale			$ 20,000	38,000
Notes receivable term			3 years
Note receivable			$ 18,000	18,000
Notes receivable periodic payment receivable			$ 500	500
Non-cash loss on sale of equity method investments				$ (24,200)
DTA
Schedule of Equity Method Investments [Line Items]
Ownership interest			35.00%	35.00%

Derivatives (Narrative) (Details) - Not Designated as Hedging Instrument gal in Millions	12 Months Ended
	Dec. 31, 2021 $ / Option gal
Call Option \| Heating Oil
Derivative [Line Items]
Quantities under derivative contracts (in gallons)	8
Derivative, average price risk option strike price (in used per gallon) \| $ / Option	2.38
Diesel Purchases \| Minimum
Derivative [Line Items]
Diesel fuel purchased annually (in gallons)	40
Diesel Purchases \| Maximum
Derivative [Line Items]
Diesel fuel purchased annually (in gallons)	45

Derivatives (Schedule of Price Risk Derivatives) (Details) - 2022 T in Thousands	12 Months Ended
	Dec. 31, 2021 T
Coal sales
Derivative [Line Items]
Derivatives held (in tons)	165
Coal purchases
Derivative [Line Items]
Derivatives held (in tons)	33

Derivatives (Disclosure Of Fair Value Of Derivatives) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative Assets	$ 6,104	$ 3,245
Derivative Liabilities	(2,203)	(2,399)
Effect of counterparty netting in derivative assets	(1,890)	(2,392)
Effect of counterparty netting in derivative liabilities	1,890	2,392
Derivative Asset	4,214	853
Derivative Liability	(313)	(7)
Net derivatives as classified in the balance sheets	3,901	846
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets	6,104	3,245
Derivative Liabilities	(2,203)	(2,399)
Not Designated as Hedging Instrument \| Coal held for trading purposes, exchange traded swaps and futures
Derivative [Line Items]
Derivative Assets		1,914
Derivative Liabilities	0	(1,595)
Coal \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liabilities	0
Coal \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets	4,885	1,094
Derivative Liabilities	(2,203)	(804)
Heating oil - diesel purchases \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Assets	1,219	$ 237
Derivative Liabilities	$ 0

Derivatives (Net Derivatives As Reflected On The Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Net derivatives as classified in the balance sheet	$ 3,901	$ 846
Other current assets
Derivatives, Fair Value [Line Items]
Current asset representing cash collateral posted		1,400
Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Current asset representing cash collateral posted	2,800
Heating oil and coal \| Other current assets
Derivatives, Fair Value [Line Items]
Net derivatives as classified in the balance sheet	4,214	853
Coal Contract \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Net derivatives as classified in the balance sheet	$ (313)	$ (7)

Derivatives (Effects Of Derivatives On Measures Of Financial Performance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Change in fair value of coal derivatives and coal trading activities, net	$ 2,392	$ (5,219)	$ 18,601
Designated as Hedging Instrument \| Coal Contract
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income		4	9,018
Gains (Losses) Reclassified from Other Comprehensive Income into Income		(392)	9,481
Designated as Hedging Instrument \| Coal sales \| Coal Contract \| Revenues
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income		500	10,249
Gains (Losses) Reclassified from Other Comprehensive Income into Income		(1,850)	10,167
Designated as Hedging Instrument \| Coal purchases \| Coal Contract \| Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income		(496)	(1,231)
Gains (Losses) Reclassified from Other Comprehensive Income into Income		1,458	(686)
Not Designated as Hedging Instrument \| Coal Contract \| Change in fair value of coal derivatives and coal trading activities, net
Derivative Instruments, Gain (Loss) [Line Items]
Realized and Unrealized Gain (Loss) on Derivatives		222	(1,013)
Unrealized Gain (Loss) on Derivatives	2,392	(5,517)	19,713
Not Designated as Hedging Instrument \| Coal Contract \| Other operating (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Realized Gain (Loss) on Derivatives	$ (27,464)	9,258	487
Not Designated as Hedging Instrument \| Natural gas \| Change in fair value of coal derivatives and coal trading activities, net
Derivative Instruments, Gain (Loss) [Line Items]
Realized and Unrealized Gain (Loss) on Derivatives		76	(99)
Not Designated as Hedging Instrument \| Heating oil - diesel purchases \| Other operating (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Heating oil realized and unrealized gains and losses		$ (558)	$ (2,291)

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued Expenses and Other Current Liabilities.
Payroll and employee benefits	$ 55,898	$ 39,443
Taxes other than income taxes	61,582	56,232
Interest	3,439	2,795
Workers' compensation	14,202	15,259
Asset retirement obligations	21,781	27,032
Other	10,402	14,495
Accrued expenses and other current liabilities	$ 167,304	$ 155,256

Debt and Financing Arrangements (Long term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 605,061
Debt issuance costs	(10,208)	$ (10,873)
Total	560,673	508,312
Less: current maturities of debt	223,050	31,097
Long-term debt	337,623	477,215
Term loan due 2024 ($291.0 million face value)
Debt Instrument [Line Items]
Long-term debt	280,353	288,033
Debt instrument, face amount	280,900
Tax Exempt Bonds
Debt Instrument [Line Items]
Long-term debt	98,075	53,090
Debt instrument, face amount	98,100
Convertible Debt.
Debt Instrument [Line Items]
Long-term debt	121,617	115,367
Debt instrument, face amount	155,300
Other Debt
Debt Instrument [Line Items]
Long-term debt	$ 70,836	$ 62,695

Debt and Financing Arrangements (Company Debt Narrative) (Details) $ / shares in Units, shares in Millions							1 Months Ended		3 Months Ended	9 Months Ended		12 Months Ended
	Nov. 03, 2020 USD ($) $ / shares	Oct. 29, 2020 USD ($) $ / shares shares	Jul. 29, 2020 USD ($) installment	Jul. 02, 2020 USD ($)	Mar. 04, 2020 USD ($) installment	Mar. 07, 2017 USD ($)	Sep. 30, 2020 USD ($)	Aug. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Sep. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018	Mar. 04, 2021 USD ($)	Sep. 29, 2020 USD ($)
Debt Instrument [Line Items]
Letters of credit outstanding									$ 20,000,000.0	$ 20,000,000.0		$ 20,000,000.0
Restricted cash									1,101,000	1,101,000		1,101,000	$ 5,953,000
Net proceeds of convertible debt	$ 155,300,000												155,250,000
Derivative liabilities									2,203,000	2,203,000		2,203,000	2,399,000
Debt financing costs												2,057,000	9,718,000	$ 0.0
Equity components liability of the convertible notes	114,500,000
Equity components of the convertible notes	$ 40,800,000
Hypothetical interest rate (as percent)	12.43%
Discount amortized									40,800,000	40,800,000		40,800,000
Deferred Offering Costs									5,900,000	5,900,000		5,900,000
Debt issuance costs									1,200,000	1,200,000		$ 1,200,000	1,900,000
Amortized as interest expense over the term												5 years
Transaction costs												$ 1,500,000
New Term Loan Debt Facility \| Senior Notes
Debt Instrument [Line Items]
Term loan, face value						$ 300,000,000
Percentage of face amount						99.50
Amount of voting equity interests of domestic subsidiaries guaranteed (percent)						100
Amount of voting equity interests of foreign owned subsidiaries guaranteed (percent)						65
New Term Loan Debt Facility \| Senior Notes \| LIBOR
Debt Instrument [Line Items]
Applicable margin on interest rate												2.75%
New Term Loan Debt Facility \| Line of Credit \| LIBOR
Debt Instrument [Line Items]
Applicable margin on interest rate															2.75%
New Term Loan Debt Facility \| Line of Credit \| LIBOR \| Minimum
Debt Instrument [Line Items]
Applicable margin on interest rate															1.00%
New Term Loan Debt Facility \| Line of Credit \| Base Rate
Debt Instrument [Line Items]
Applicable margin on interest rate															1.75%
Interest Rate Swap
Debt Instrument [Line Items]
Derivative liabilities									1,800,000	1,800,000		$ 1,800,000
Gain (loss) on interest rate swap												(1,900,000)	$ 2,100,000	$ 1,100,000
New Term Loan Debt Facility \| Senior Notes
Debt Instrument [Line Items]
Quarterly principal amortization payments						$ 800,000
Term loan repaid												69,700,000
Mandatory prepayment amount (as percent)						100
Default to indebtedness						$ 50,000,000
Default to surety, reclamation, or similar bonds securing obligations						50,000,000
Default to uninsured judgment						50,000,000
Uninsured losses or proceedings against minimum amount						$ 50,000,000
Accounts Receivable Securitization Facility \| Line of Credit \| Secured Debt
Debt Instrument [Line Items]
Current borrowing capacity									42,500,000	42,500,000		42,500,000
Letters of credit outstanding									67,500,000	67,500,000		67,500,000
Accounts Receivable Securitization Facility \| Regions Bank \| Line of Credit \| Secured Debt
Debt Instrument [Line Items]
Current borrowing capacity							$ 110,000,000				$ 110,000,000						$ 160,000,000
Inventory-Based Revolving Credit Facility
Debt Instrument [Line Items]
Covenant amount												6,400,000
Inventory-Based Revolving Credit Facility \| Regions Bank \| Line of Credit \| Secured Debt
Debt Instrument [Line Items]
Term loan, face value							50,000,000				$ 50,000,000
Letters of credit outstanding									27,700,000	27,700,000		$ 27,700,000
Borrowing base percentage, coal inventory											85
Borrowing base percentage, parts and supplies inventory											85
Borrowing base, percentage of clause											35
Percent of eligible cash											100.00%
Covenant amount							$ 100,000,000	$ 175,000,000			$ 100,000,000
Inventory-Based Revolving Credit Facility \| Regions Bank \| Line of Credit \| Secured Debt \| LIBOR
Debt Instrument [Line Items]
Applicable margin on interest rate												0.75%
Inventory-Based Revolving Credit Facility \| Regions Bank \| Line of Credit \| Secured Debt \| LIBOR \| Minimum
Debt Instrument [Line Items]
Applicable margin on interest rate												2.50%
Inventory-Based Revolving Credit Facility \| Regions Bank \| Line of Credit \| Secured Debt \| LIBOR \| Maximum
Debt Instrument [Line Items]
Applicable margin on interest rate												3.50%
Inventory-Based Revolving Credit Facility \| Regions Bank \| Line of Credit \| Secured Debt \| Base Rate \| Minimum
Debt Instrument [Line Items]
Applicable margin on interest rate												1.50%
Inventory-Based Revolving Credit Facility \| Regions Bank \| Line of Credit \| Secured Debt \| Base Rate \| Maximum
Debt Instrument [Line Items]
Applicable margin on interest rate												2.50%
Equipment financing arrangement \| Secured Debt
Debt Instrument [Line Items]
Term loan, face value			$ 23,500,000		$ 53,600,000
Number of monthly payments \| installment			42		48
Interest rate			7.35%		6.34%
Tax Exempt Bonds
Debt Instrument [Line Items]
Term loan, face value									$ 98,100,000	$ 98,100,000		$ 98,100,000
Tax Exempt Bonds \| Minimum
Debt Instrument [Line Items]
Covenant for cross-events of default to indebtedness											$ 50,000,000
Series 2020 Tax Exempt Bonds
Debt Instrument [Line Items]
Term loan, face value				$ 53,100,000
Interest rate				5.00%
Mandatory tender percentage				100.00%
Series 2021 Tax Exempt Bonds
Debt Instrument [Line Items]
Term loan, face value																$ 45,000,000.0
Interest rate																4.125%
Convertible Notes
Debt Instrument [Line Items]
Term loan, face value	$ 155,300,000
Interest rate	5.25%
Net proceeds of convertible debt	$ 132,700,000
Initial Conversion ratio	26.7917								26.876
Initial Conversion price (in dollars per share) \| $ / shares	$ 37.325								$ 37.208	$ 37.208		$ 37.208
Convertible debt, current									$ 121,600,000	$ 121,600,000		$ 121,600,000
Stock price trigger (as a percent)	130.00%
Trading days, number	20
Convertible Notes exceeded the principal amount												225,300,000
Consecutive trading days, period	30
Total interest expense										15,100,000
Contractual interest coupon										8,200,000
Amortization of debt discount										6,900,000
Deferred Offering Costs	$ 5,100,000
Debt issuance costs									$ 4,400,000	$ 4,400,000		$ 4,400,000
Capped Call Transactions
Debt Instrument [Line Items]
Initial strike price (in dollars per share) \| $ / shares		$ 37.325
Number of underlying shares \| shares		4.2
Cap price \| $ / shares		$ 52.2550
Premium percentage (as percent)		75.00%
Capped call, transaction cost	$ 17,500,000	$ 17,500,000

Debt and Financing Arrangements (Interest rate derivatives) (Details) - June 30, 2021 $ in Millions	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Notional Amount	$ 100.0
Fixed Rate	2.315%

Debt and Financing Arrangements (Debt Maturities) (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Debt and Financing Arrangements
2022	$ 107,733
2023	22,304
2024	213,934
2025	261,090
2026	0
Thereafter	0
Total	$ 605,061

Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Taxes (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Income tax benefit from cumulative adjustments	$ 69,600	$ 76,500
Valuation allowance	504,392	573,995
Amount of adjustment to APIC, deferred tax liability due to change in valuation allowance.		8,800
Operating loss carryforwards	1,300,000
Operating loss carryforwards subject to expiration	1,100,000
Interest and penalties accrued related to unrecognized tax benefits	3,800	2,300
Gross unrecognized tax benefits	$ 48,963	$ 48,116		$ 39,729	$ 39,093
Forecast
Operating Loss Carryforwards [Line Items]
Gross unrecognized tax benefits			$ 37,500

Taxes (Schedule of Components of Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 1,525	$ 518	$ (36)
State	342	(569)	124
Total current	1,867	(51)	88
Deferred:
Federal	7	44	667
State			(507)
Total deferred	7	44	160
Provision for (benefit from) income taxes	$ 1,874	$ (7)	$ 248

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes
Income tax provision (benefit) at statutory rate	$ 71,284	$ (72,371)	$ 49,150
Percentage depletion and other perm items	(29,392)	(7,763)	(17,743)
State taxes, net of effect of federal taxes	16,490	(3,298)	(12,769)
Change in valuation allowance	(69,603)	76,524	(24,206)
Other, net	13,095	6,901	5,816
Provision for (benefit from) income taxes	$ 1,874	$ (7)	$ 248

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Taxes (Schedule of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Tax loss carryforwards	$ 326,763	$ 352,342
Tax credit carryforwards	2,565	3,117
Investment in partnerships	170,610	213,478
Other	17,263	19,377
Gross deferred tax assets	517,201	588,314
Valuation allowance	(504,392)	(573,995)
Total deferred tax assets	12,809	14,319
Deferred tax liabilities:
Plant and equipment	467	1,219
Convertible Notes	7,008	8,845
Other	5,304	4,218
Total deferred tax liabilities	12,779	14,282
Net deferred tax asset	$ 30	$ 37

Taxes (Schedule of Gross Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	$ 48,116	$ 39,729	$ 39,093
Additions based on tax positions related to the current year	3,467	1,583	2,980
Additions for tax positions of prior years	3,931	7,918
Reductions for tax positions of prior years	(2,868)	(732)	(1,970)
Reductions as a result of lapses in the statute of limitations	(3,683)	(382)	(374)
Ending Balance	$ 48,963	$ 48,116	$ 39,729

Asset Retirement Obligations (Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at beginning of period (including current portion)	$ 257,764	$ 252,798
Accretion expense	21,748	19,887	$ 20,548
Obligations of divested operations		(15,455)
Adjustments to the liability from changes in estimates	(26,012)	14,889
Reclamation work completed	(39,047)	(14,355)
Balance at period end	214,453	257,764	$ 252,798
Current portion included in accrued expenses	(21,781)	(27,032)
Noncurrent liability	$ 192,672	$ 230,732

Asset Retirement Obligations (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
asset retirement obligations [Line Items]
Surety bonds outstanding	$ 26,000
Letters of credit outstanding	20,000
Cash collateral for surety bond	600
Sinking fund for asset retirement obligations	20,000
Asset retirement obligations
asset retirement obligations [Line Items]
Surety bonds outstanding	$ 500,500

Fair Value Measurements (Financial Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets:
Investments in marketable securities	$ 14,463	$ 96,765
Derivatives	4,214	853
Total assets	18,677	97,618
Liabilities:
Derivatives	2,077	3,899
Level 1
Assets:
Investments in marketable securities	6,003	57,224
Derivatives		21
Total assets	6,003	57,245
Liabilities:
Derivatives	313	7
Level 2
Assets:
Investments in marketable securities	8,460	39,541
Derivatives	2,995	832
Total assets	11,455	40,373
Liabilities:
Derivatives	1,764	3,892
Level 3
Assets:
Investments in marketable securities	0	0
Derivatives	1,219	0
Total assets	1,219	0
Liabilities:
Derivatives	$ 0	$ 0

Fair Value Measurements (Change In The Fair Values Of Financial Instruments Categorized As Level 3) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		$ 61
Realized and unrealized (gains) losses recognized in earnings, net		1,158
Purchases	$ 1,219	1,235
Issuances		$ (138)
Ending balance	$ 1,219

Fair Value Measurements (Change in Instruments Categorized as Level 3) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		$ 61
Realized and unrealized (gains) losses recognized in earnings, net		(1,158)
Purchases	$ 1,219	1,235
Issuances		$ (138)
Ending balance	$ 1,219

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, including amounts classified as current	$ 819.5	$ 533.8
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net unrealized gains (losses) related to level 3 financial instruments	$ 0.0

Capital Stock (Dividends) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Capital Stock
Dividends (in dollars per share)	$ 0.25	$ 0.50	$ 0.25	$ 0.50
Amount (in thousands)	$ 3,830	$ 8,245	$ 3,830	$ 8,245

Capital Stock (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Apr. 30, 2019	Oct. 05, 2016
Class of Stock [Line Items]
Incremental increase to authorized amount of share repurchase program			$ 250
Authorized amount of share repurchase program			$ 1,050
Warrants issued (in shares)	1,825,423
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Percentage of common stock in transaction	90.00%
Warrants, repurchase amount (in dollars per share)	$ 0
Warrant exercised (in shares)	20,145
Common Class A
Class of Stock [Line Items]
Warrants issued (in shares)				1,914,856
Common stock, par value (in dollars per share)				$ 0.01
Warrant exercise price (in dollars per share)				$ 57.00

Capital Stock (Share Repurchase Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended	33 Months Ended
	Dec. 31, 2019	Dec. 31, 2021
Capital Stock
Number of Shares (in shares)	2,872,548	10,088,378
Average Repurchase Price per Share (in dollars per share)		$ 82.01
Amount (in thousands)	$ 243,498	$ 827,000
Stock Repurchase Program, remaining amount		$ 223,000

Stock-Based Compensation and Other Incentive Plans (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 20.5	$ 17.4	$ 22.0
Unrecognized share-based compensation expense	$ 31.4
Weighted-average period for recognition of unrecognized share-based compensation expense	2 years
Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Volatility rate	57.00%
2016 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for incentive plan (in shares)	3.0
Number of shares available for grant (in shares)	1.8

Stock-Based Compensation and Other Incentive Plans (Restricted Stock Unit Activity) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Time Based Awards
Restricted Stock Common Shares
Outstanding at beginning of period (in shares) \| shares	341
Granted (in shares) \| shares	286
Forfeited/Canceled (in shares) \| shares	(9)
Vested (in shares) \| shares	(189)
Outstanding at end of period (in shares) \| shares	429
Weighted Average Grant Date Fair Value
Outstanding weighted average grant date fair value at beginning of period (in dollars per share) \| $ / shares	$ 64.38
Granted (in dollars per share) \| $ / shares	$ 67.21
Forfeited/Canceled (in dollars per share) \| $ / shares	57.70
Vested (in dollars per share) \| $ / shares	$ 75.27
Outstanding weighted average grant date fair value at end of period (in dollars per share) \| $ / shares	$ 61.60
Performance Based Awards
Restricted Stock Common Shares
Outstanding at beginning of period (in shares) \| shares	286
Granted (in shares) \| shares	164
Forfeited/Canceled (in shares) \| shares	(100)
Vested (in shares) \| shares	(9)
Outstanding at end of period (in shares) \| shares	341
Weighted Average Grant Date Fair Value
Outstanding weighted average grant date fair value at beginning of period (in dollars per share) \| $ / shares	$ 71.44
Granted (in dollars per share) \| $ / shares	$ 58.74
Forfeited/Canceled (in dollars per share) \| $ / shares	105.95
Vested (in dollars per share) \| $ / shares	$ 135.34
Outstanding weighted average grant date fair value at end of period (in dollars per share) \| $ / shares	$ 53.49

Workers' Compensation Expense (Narrative) (Details) $ in Millions	1 Months Ended	12 Months Ended
	Feb. 29, 2020 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Additional collateral amount	$ 71.1
Number of days required to submit additional collateral to retain self-insurance status	30 days
Increase (decrease) in workers compensation obligations due to change in discount rate		$ 11.6
Reimbursable liabilities		13.1
Insurance receivable, current		0.6
Insurance receivable, noncurrent		12.5
Total workers' compensation expense
Defined Benefit Plan Disclosure [Line Items]
Surety bonds and letters of credit outstanding		$ 120.7
Risk Free Interest Rate \| Total workers' compensation expense
Defined Benefit Plan Disclosure [Line Items]
Discount rate		0.0147

Workers' Compensation Expense (Worker's Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accrued Workers' Compensation [Line Items]
Service cost	$ 7,796	$ 7,564	$ 6,677
Interest cost	4,439	5,115	4,922
Net amortization	2,363	1,189	0
Total workers' compensation expense
Accrued Workers' Compensation [Line Items]
Total workers' compensation expense	18,523	26,790	24,649
Occupational disease
Accrued Workers' Compensation [Line Items]
Service cost	7,796	7,564
Interest cost	4,439	5,115
Net benefit cost (credit)	14,598	13,868	11,599
Traumatic injury claims and assessments
Accrued Workers' Compensation [Line Items]
Traumatic injury claims and assessments	$ 3,925	$ 12,922	$ 13,050

Workers' Compensation Expense (Occupational Disease Costs Activity and Assumptions) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Self Insurance Reserve [Roll Forward]
Service cost	$ 7,796	$ 7,564	$ 6,677
Interest cost	$ 4,439	$ 5,115	4,922
Discount Rate
Self Insurance Reserve [Roll Forward]
Discount rate	0.0282	0.0248
Occupational disease
Self Insurance Reserve [Roll Forward]
Beginning of period	$ 183,001	$ 158,325
Service cost	7,796	7,564
Interest cost	4,439	5,115
Actuarial (gain) loss	(21,245)	19,327
Benefit and administrative payments	(6,406)	(7,330)
End of period	$ 167,585	$ 183,001	$ 158,325

Workers' Compensation Expense (Schedule of Amounts Recognized in Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accrued Workers' Compensation [Line Items]
Total obligations	$ 238,307	$ 259,954
Less amount included in accrued expenses	14,202	15,259
Noncurrent obligations	224,105	244,695
Occupational disease
Accrued Workers' Compensation [Line Items]
Occupational disease costs	167,585	183,001	$ 158,325
Total workers' compensation expense
Accrued Workers' Compensation [Line Items]
Occupational disease costs	$ 70,722	$ 76,953

Workers' Compensation Expense (Schedule of Expected Future Payments) (Details) - Workers Compensation Obligation $ in Thousands	Dec. 31, 2021 USD ($)
Expected Future Payments
2022	$ 12,525
2023	12,883
2024	12,997
2025	13,318
2026	13,595
Next 5 years	33,849
Total	$ 99,167

Employee Benefit Plans (Schedule of Defined Benefit Plans Disclosures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Service cost	$ 7,796	$ 7,564	$ 6,677
Interest cost	4,439	5,115	4,922
Defined benefit pension plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligations at beginning of year	202,267	217,548
Service cost	0	0	0
Interest cost	4,334	5,498	8,141
Settlement gain	(1,768)	(896)
Curtailments	0	0
Plan Amendments	(341)	0
Benefits paid	(27,014)	(38,221)
Other-primarily actuarial (gain) loss	(7,502)	18,338
Benefit Obligations at end of year	169,976	202,267	217,548
CHANGE IN PLAN ASSETS
Value of Plan Assets at beginning of year	199,248	211,802
Actual return on plan assets	5,117	23,055
Employer contributions	148	2,612
Benefits paid	(27,014)	(38,221)
Value of Plan Assets at end of year	177,499	199,248	211,802
Accrued benefit net asset (obiligation)	7,523	(3,019)
ITEMS NOT YET RECOGNIZED AS A COMPONENT OF NET PERIODIC BENEFIT COST
Prior service credit	1,091	880
Accumulated gain	16,102	10,790
Total not yet recognized as a component of net periodic benefit cost	17,193	11,670
BALANCE SHEET AMOUNTS
Noncurrent asset	8,973	0
Current liability	(150)	(140)
Noncurrent liability	(1,300)	(2,879)
Total balance sheet amounts	7,523	(3,019)
Other postretirement benefits plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligations at beginning of year	100,898	87,867
Service cost	341	419	480
Interest cost	2,113	2,392	3,505
Settlement gain	0	0
Curtailments	0	284
Plan Amendments	0	0
Benefits paid	(5,676)	(6,507)
Other-primarily actuarial (gain) loss	(18,431)	16,443
Benefit Obligations at end of year	79,245	100,898	87,867
CHANGE IN PLAN ASSETS
Value of Plan Assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	5,676	6,507
Benefits paid	(5,676)	(6,507)
Value of Plan Assets at end of year	0	0	$ 0
Accrued benefit net asset (obiligation)	(79,245)	(100,898)
ITEMS NOT YET RECOGNIZED AS A COMPONENT OF NET PERIODIC BENEFIT COST
Prior service credit	0	0
Accumulated gain	20,657	2,226
Total not yet recognized as a component of net periodic benefit cost	20,657	2,226
BALANCE SHEET AMOUNTS
Noncurrent asset	0	0
Current liability	(5,680)	(6,510)
Noncurrent liability	(73,565)	(94,388)
Total balance sheet amounts	$ (79,245)	$ (100,898)

Employee Benefit Plans (Narrative) (Details) - USD ($)	12 Months Ended
Employee Benefit Plans (Narrative) (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed	8.00%
Ultimate trend rate	4.50%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (percent)	15.00%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (percent)	85.00%
Defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation of pension plans	$ 170,000,000.0	$ 202,300,000
Weighted-average interest credit rate (as percent)	4.25%	4.25%
Discount rate increased plan obligations	$ (8,900,000)
Pension contributions planned for next fiscal year	0
Other postretirement benefits payments	16,800,000	$ 17,100,000	$ 17,500,000
Other postretirement benefits plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate increased plan obligations	(4,000,000.0)
Health care cost trend assumption	(6,300,000)
Claims cost assumption	$ (7,100,000)

Employee Benefit Plans (Schedule of Net Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7,796	$ 7,564	$ 6,677
Interest cost	4,439	5,115	4,922
Amortization of other actuarial losses (gains)	(2,363)	(1,189)	0
Defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	4,334	5,498	8,141
Curtailments	0	0	0
Settlements	(1,768)	(896)	(1,326)
Expected return on plan assets	(7,245)	(8,283)	(10,555)
Amortization of prior service credits	(190)	(112)	(24)
Amortization of other actuarial losses (gains)	0	0	(11)
Net benefit cost (credit)	(4,869)	(3,793)	(3,775)
Other postretirement benefits plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	341	419	480
Interest cost	2,113	2,392	3,505
Curtailments	0	0	0
Settlements	0	0	0
Expected return on plan assets	0	0	0
Amortization of prior service credits	0	0	0
Amortization of other actuarial losses (gains)	0	(1,379)	(2,974)
Net benefit cost (credit)	$ 2,454	$ 1,432	$ 1,011

Employee Benefit Plans (Schedule of Assumptions Used to Calculate Benefit Obligations) (Details)	Dec. 31, 2021	Dec. 31, 2020
Other postretirement benefits plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.63%	2.17%
Excess Plan \| Defined benefit pension plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.49%	1.96%
Cash Balance \| Defined benefit pension plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.67%	2.19%

Employee Benefit Plans (Schedule of Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined benefit pension plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.50%	2.72%	3.65%
Expected return on plan assets	4.30%	4.65%	5.10%
Other postretirement benefits plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.17%	3.09%	4.12%

Employee Benefit Plans (Schedule of Allocation of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Total fair value	$ 177,499	$ 199,248
Total
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	150,854	143,477
Total \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	41,129	23,882
Total \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	109,725	119,595
U.S. small-cap
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,287
U.S. small-cap \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,287
U.S. mid-cap
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,890
U.S. mid-cap \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets		2,890
U.S. government securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	42,273	31,850
U.S. government securities \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	41,129	18,705
U.S. government securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	1,144	13,145
Non-U.S. government securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	333	1,612
Non-U.S. government securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	333	1,612
Corporate notes and bonds
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	81,906	98,357
Corporate notes and bonds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	81,906	98,357
State and local government securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	2,514	2,962
State and local government securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	2,514	2,962
Other investments
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	23,828	3,519
Other investments \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	23,828	3,519
Other fixed income
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	$ 26,645	$ 55,771

Employee Benefit Plans (Summary of Estimated Future Benefit Payments) (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
2022	$ 11,245
2023	11,415
2024	11,476
2025	11,181
2026	10,892
Next 5 years	46,338
Total	102,547
Other postretirement benefits plan
Defined Benefit Plan Disclosure [Line Items]
2022	5,968
2023	5,884
2024	5,617
2025	5,458
2026	5,275
Next 5 years	23,632
Total	$ 51,834

Earnings per Common Share (Details) - shares	12 Months Ended
Earnings per Common Share (Details) - shares	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings per Common Share
Antidilutive Securities excluded	215,000
Weighted average shares outstanding:
Basic weighted average shares outstanding (in shares)	15,318,000	15,153,000	16,218,000
Effect of dilutive securities (in shares)	2,261,000		1,080,000
Diluted weighted average shares outstanding (in shares)	17,579,000	15,153,000	17,298,000

Leases (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Leases (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 14,646	$ 17,069
Operating lease expense	9,200	8,600	$ 12,000
Royalty expense	127,800	$ 103,700	$ 149,500
Surety bonds outstanding	$ 26,000
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease terms	7 years

Leases (Lease Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating lease right-of-use assets	$ 14,646	$ 17,069
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent	Other Assets, Noncurrent
Financing lease right-of-use assets	$ 4,215	$ 5,512
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent	Other Assets, Noncurrent
Total Lease Assets	$ 18,861	$ 22,581
Liabilities
Financing lease liabilities - current	$ 917	$ 860
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Liabilities, Current	Accrued Liabilities, Current
Operating lease liabilities - current	$ 2,606	$ 2,454
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Liabilities, Current	Accrued Liabilities, Current
Financing lease liabilities - long-term	$ 4,097	$ 5,014
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Operating lease liabilities - long-term	$ 12,713	$ 15,278
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Total Lease Liabilities	$ 20,333	$ 23,606

Leases (Weighted Average Lease Term And Discount Rate) (Details)	Dec. 31, 2021	Dec. 31, 2020
Leases
Weighted average remaining lease term in years	5 years 1 month 20 days	5 years 11 months 26 days
Weighted average remaining lease term in years	3 years 3 months	4 years 3 months
Weighted average discount rate	5.50%	5.50%
Weighted average discount rate	6.40%	6.40%

Leases (Components of Lease Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases
Operating lease cost	$ 3,364	$ 3,620
Operating cash flows from operating leases	3,377	3,610
Financing lease cost	1,572	1,179
Operating cash flows from financing leases	$ 1,210	$ 909

Leases (Future Minimum Lease Payments) (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Operating Leases
2022	$ 3,389
2023	3,356
2024	3,200
2025	3,185
2026	3,080
Thereafter	1,533
Total minimum lease payments	17,743
Less imputed interest	(2,424)
Total operating lease liability	15,319
Finance Leases
2022	1,210
2023	1,210
2024	1,210
2025	2,111
Total minimum lease payments	5,741
Less imputed interest	(727)
Total finance lease liability	$ 5,014

Risk Concentrations (Narrative) (Details) $ in Thousands, T in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) T	Dec. 31, 2020 USD ($)
Concentration Risk [Line Items]
Trade accounts receivable	$ 324,304	$ 110,869
Tons of coal sold \| T	73.0
Percentage of tons sold under long term contract	63.00%
Long term contracts percentage of company revenue	35.00%
Long-term contracts, life term, minimum	1 year
Long-term contracts, life term, maximum	5 years
Electric utilities
Concentration Risk [Line Items]
Receivables	$ 72,800	$ 41,700
Percentage of total trade accounts receivable	22.00%	38.00%
Domestic and foreign steel producers
Concentration Risk [Line Items]
Trade accounts receivable	$ 251,500	$ 69,100
Trade receivables, percentage	78.00%	62.00%

Risk Concentrations (Schedule of Foreign Revenues) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Concentration Risk [Line Items]
Revenues	$ 2,208,042	$ 1,467,592	$ 2,294,352
Seaborne Revenue
Concentration Risk [Line Items]
Revenues	1,149,039	496,930	960,320
Europe \| Seaborne Revenue
Concentration Risk [Line Items]
Revenues	592,702	289,176	537,117
Asia \| Seaborne Revenue
Concentration Risk [Line Items]
Revenues	446,724	138,086	322,029
Central and South America \| Seaborne Revenue
Concentration Risk [Line Items]
Revenues	$ 109,613	56,905	82,476
Africa \| Seaborne Revenue
Concentration Risk [Line Items]
Revenues		$ 12,763	$ 18,698

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details

Revenue Recognition (Schedule of Revenues) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 2,208,042	$ 1,467,592	$ 2,294,352
North America revenues
Disaggregation of Revenue [Line Items]
Revenues	1,059,003	970,662	1,334,032
Seaborne revenues
Disaggregation of Revenue [Line Items]
Revenues	1,149,039	496,930	960,320
Operating Segments \| MET
Disaggregation of Revenue [Line Items]
Revenues	1,149,133	641,536	990,550
Operating Segments \| MET \| North America revenues
Disaggregation of Revenue [Line Items]
Revenues	163,833	173,508	217,381
Operating Segments \| MET \| Seaborne revenues
Disaggregation of Revenue [Line Items]
Revenues	985,300	468,028	773,169
Operating Segments \| Thermal
Disaggregation of Revenue [Line Items]
Revenues	1,057,480	801,632	1,292,952
Operating Segments \| Thermal \| North America revenues
Disaggregation of Revenue [Line Items]
Revenues	893,741	772,730	1,105,801
Operating Segments \| Thermal \| Seaborne revenues
Disaggregation of Revenue [Line Items]
Revenues	163,739	28,902	187,151
Corporate, Other and Eliminations
Disaggregation of Revenue [Line Items]
Revenues	1,429	24,424	10,850
Corporate, Other and Eliminations \| North America revenues
Disaggregation of Revenue [Line Items]
Revenues	1,429	24,424	10,850
Corporate, Other and Eliminations \| Seaborne revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0	$ 0

- Definition

+ References

+ Details

Revenue Recognition (Narrative) (Details) - Coal T in Millions	Dec. 31, 2021 T
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation (in tons)	83.2
Remaining performance obligations, fixed price contracts (in tons)	75.6
Remaining performance obligation, variable price contracts (in tons)	7.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation (in tons)	65.5
Remaining performance obligations, fixed price contracts (in tons)	61.5
Remaining performance obligation, variable price contracts (in tons)	4.0

Commitments and Contingencies (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies
Amount accrued	$ 0.1	$ 0.1
Future commitments	$ 132.7

Segment Information (Schedule Of Operating Segment Results) (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) segment item	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	2	3
Number of remaining active thermal mines \| item	3
Number of distinct lines of business	$ 2
Revenues	2,208,042,000	$ 1,467,592,000	$ 2,294,352,000
Adjusted EBITDA	533,430,000	23,743,000	363,167,000
Depreciation, depletion and amortization	120,327,000	121,552,000	111,621,000
Accretion on asset retirement obligations	21,748,000	19,887,000	20,548,000
Total assets	2,117,160,000	1,722,472,000	1,867,756,000
Capital expenditures	245,440,000	285,821,000	266,356,000
Operating Segments \| MET
Segment Reporting Information [Line Items]
Revenues	1,149,133,000	641,536,000	990,550,000
Adjusted EBITDA	442,830,000	91,322,000	305,363,000
Depreciation, depletion and amortization	99,171,000	91,202,000	74,211,000
Accretion on asset retirement obligations	2,030,000	1,943,000	2,123,000
Total assets	964,761,000	811,605,000	625,134,000
Capital expenditures	227,802,000	269,273,000	211,718,000
Operating Segments \| Thermal
Segment Reporting Information [Line Items]
Revenues	1,057,480,000	801,632,000	1,292,952,000
Adjusted EBITDA	175,709,000	34,035,000	152,023,000
Depreciation, depletion and amortization	20,231,000	28,351,000	35,224,000
Accretion on asset retirement obligations	17,675,000	15,368,000	14,955,000
Total assets	205,147,000	196,336,000	361,871,000
Capital expenditures	5,949,000	10,719,000	49,508,000
Corporate, Other and Eliminations
Segment Reporting Information [Line Items]
Revenues	1,429,000	24,424,000	10,850,000
Adjusted EBITDA	(85,109,000)	(101,614,000)	(94,219,000)
Depreciation, depletion and amortization	925,000	1,999,000	2,186,000
Accretion on asset retirement obligations	2,043,000	2,576,000	3,470,000
Total assets	947,252,000	714,531,000	880,751,000
Capital expenditures	$ 11,689,000	$ 5,829,000	$ 5,130,000

Segment Information (Reconciliation Segment Income To Net Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net income (loss)	$ 337,573	$ (344,615)	$ 233,799
Provision for (benefit from) income taxes	1,874	(7)	248
Interest expense, net	23,344	10,624	6,794
Depreciation, depletion and amortization	120,327	121,552	111,621
Accretion on asset retirement obligations	21,748	19,887	20,548
Costs related to proposed joint venture with Peabody Energy		16,087	13,816
Asset impairment and restructuring		221,380
Gain on property insurance recovery related to Mountain Laurel longwall		(23,518)
Loss (Gain) on divestitures	24,225	(1,505)	13,312
Preference Rights Lease Application settlement income			(39,000)
Non-service related pension and postretirement benefit costs	4,339	3,884	2,053
Reorganization items, net		(26)	(24)
Adjusted EBITDA	533,430	23,743	363,167
EBITDA from idled or otherwise disposed operations	2,469	15,858	12,926
Selling, general and administrative expenses	92,342	82,397	95,781
Other	(9,702)	3,359	(14,488)
Segment Adjusted EBITDA from coal operations	618,539	125,357	457,386
Dal-Tex and Briar Branch Properties
Segment Reporting Information [Line Items]
Loss (Gain) on divestitures	$ 24,225	$ (1,505)	$ 13,312

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 15, 2022	Dec. 31, 2021	Feb. 28, 2022	Dec. 31, 2020
Subsequent Event [Line Items]
Outstanding debt		$ 560,673		$ 508,312
Cash and cash equivalents		325,194		$ 187,492
New Term Loan Debt Facility \| Senior Notes
Subsequent Event [Line Items]
Term loan repaid		$ 69,700
Subsequent Event
Subsequent Event [Line Items]
Outstanding debt	$ 300,000
Quarterly dividend			$ 0.25
Subsequent Event \| New Term Loan Debt Facility \| Senior Notes
Subsequent Event [Line Items]
Term loan repaid	271,300
Outstanding debt	$ 9,500

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References + Details

Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts receivable and other receivables
Reserves deducted from asset accounts:
Balance at Beginning of Year	$ 10,636	$ 10,636
Charged to Other Accounts			$ 10,636
Balance at End of Year	10,636	10,636	10,636
Current assets - supplies and inventory
Reserves deducted from asset accounts:
Balance at Beginning of Year	574	2,216	648
Additions (Reductions) Charged to Costs and Expenses	1,860	477	1,737
Charged to Other Accounts		(137)	(35)
Deductions	185	1,982	134
Balance at End of Year	2,249	574	2,216
Deferred income taxes
Reserves deducted from asset accounts:
Balance at Beginning of Year	573,995	506,316	530,612
Additions (Reductions) Charged to Costs and Expenses	(69,603)	76,524	(24,296)
Charged to Other Accounts		(8,845)
Balance at End of Year	$ 504,392	$ 573,995	$ 506,316