Warrior Met Coal (HCC) 10-Q5 May 222022 Q1 Quarterly reportFinancial data

Company Profile

Cover

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2022	May 03, 2022
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-38061
Entity Registrant Name	Warrior Met Coal, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-0706839
Entity Address, Address Line One	16243 Highway 216
Entity Address, City or Town	Brookwood
Entity Address, State or Province	AL
Entity Address, Postal Zip Code	35444
City Area Code	205
Local Phone Number	554-6150
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		51,653,152
Entity Central Index key	0001691303
Document Fiscal Year Focus	2022
Amendment Flag	false
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	HCC
Security Exchange Name	NYSE
Preferred Stock
Document Information [Line Items]
Title of 12(b) Security	Rights to Purchase Series A Junior Participating Preferred Stock, par value $0.01 per share
Security Exchange Name	NYSE
No Trading Symbol Flag	true

CONDENSED STATEMENTS OF OPERATI

CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Total revenues	$ 378,652	$ 213,764
Costs and expenses:
Cost of sales (exclusive of items shown separately below)	135,341	154,350
Cost of other revenues (exclusive of items shown separately below)	7,040	7,795
Depreciation and depletion	25,797	32,903
Selling, general and administrative	13,929	7,637
Business interruption	6,688	0
Idle mine	3,008	0
Total costs and expenses	191,803	202,685
Operating income	186,849	11,079
Interest expense, net	(7,822)	(8,693)
Other income (expenses)	675	(109)
Income before income tax expense	179,702	2,277
Income tax expense	33,453	23,632
Net income (loss)	$ 146,249	$ (21,355)
Basic and diluted net income (loss) per share:
Net income (loss) per share-basic (in dollars per share)	$ 2.84	$ (0.42)
Net income (loss) per share-diluted (in dollars per share)	$ 2.83	$ (0.42)
Weighted average number of shares outstanding-basic (in shares)	51,532	51,274
Weighted average number of shares outstanding-diluted (in shares)	51,634	51,274
Dividends per share (in dollars per share)	$ 0.05	$ 0.05
Sales
Revenues:
Total revenues	$ 382,433	$ 206,989
Other revenues
Revenues:
Total revenues	$ (3,781)	$ 6,775

CONDENSED BALANCE SHEETS

CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 434,047	$ 395,839
Short-term investments	8,506	8,505
Trade accounts receivable	260,477	122,150
Inventories, net	110,535	59,619
Prepaid expenses and other receivables	26,045	41,088
Total current assets	839,610	627,201
Mineral interests, net	91,196	93,180
Property, plant and equipment, net	606,198	603,412
Deferred income taxes	92,684	125,276
Other long-term assets	13,662	15,142
Total assets	1,643,350	1,464,211
Current liabilities:
Accounts payable	60,446	33,829
Accrued expenses	55,736	54,847
Short term financing lease liabilities	21,910	23,622
Other current liabilities	17,592	9,830
Total current liabilities	155,684	122,128
Long-term debt	340,078	339,806
Asset retirement obligations	69,018	65,536
Long term financing lease liabilities	24,853	28,434
Other long-term liabilities	35,109	36,324
Total liabilities	624,742	592,228
Stockholders’ Equity:
Common stock, $0.01 par value per share (Authorized -140,000,000 shares as of March 31, 2022 and December 31, 2021, 53,832,331 issued and 51,610,490 outstanding as of March 31, 2022 and 53,659,643 issued and 51,437,802 outstanding as of December 31, 2021)	537	537
Preferred stock, $0.01 par value per share (10,000,000 shares authorized, no shares issued and outstanding)	0	0
Treasury stock, at cost (2,221,841 shares as of March 31, 2022 and December 31, 2021)	(50,576)	(50,576)
Additional paid in capital	259,561	256,059
Retained earnings	809,086	665,963
Total stockholders’ equity	1,018,608	871,983
Total liabilities and stockholders’ equity	$ 1,643,350	$ 1,464,211

CONDENSED BALANCE SHEETS (Paren

CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	140,000,000	140,000,000
Common stock shares issued (in shares)	53,832,331	53,659,643
Common stock shares outstanding (in shares)	51,610,490	51,437,802
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (in shares)	10,000,000	10,000,000
Preferred stock shares issued (in shares)	0	0
Preferred stock shares outstanding (in shares)	0	0
Treasury stock (in shares)	2,221,841	2,221,841

CONDENSED STATEMENTS OF CHANGES

CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Preferred Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings
Balance at beginning of period at Dec. 31, 2020		$ 534	$ 0	$ (50,576)	$ 249,746	$ 525,537
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares		2
Stock compensation					1,567
Other					(2,539)
Net income (loss)	$ (21,355)					(21,355)
Dividends paid						(2,613)
Balance at end of period at Mar. 31, 2021	700,303	536	0	(50,576)	248,774	501,569
Balance at beginning of period at Dec. 31, 2021	871,983	537	0	(50,576)	256,059	665,963
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares		0
Stock compensation					7,218
Other					(3,716)
Net income (loss)	146,249					146,249
Dividends paid						(3,126)
Balance at end of period at Mar. 31, 2022	$ 1,018,608	$ 537	$ 0	$ (50,576)	$ 259,561	$ 809,086

CONDENSED STATEMENTS OF CASH FL

CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
OPERATING ACTIVITIES
Net income (loss)	$ 146,249	$ (21,355)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and depletion	25,797	32,903
Deferred income tax expense	33,382	23,632
Stock based compensation expense	7,218	1,696
Amortization of debt issuance costs and debt discount	522	425
Accretion of asset retirement obligations	867	805
Mark-to-market loss on gas hedges	11,681	0
Changes in operating assets and liabilities:
Trade accounts receivable	(138,328)	7,178
Inventories	(39,446)	(16,107)
Prepaid expenses and other receivables	7,148	10,192
Accounts payable	13,090	4,964
Accrued expenses and other current liabilities	(1,500)	(5,463)
Other	3,461	6,352
Net cash provided by operating activities	70,141	45,222
INVESTING ACTIVITIES
Purchase of property, plant and equipment	(10,528)	(9,479)
Deferred mine development costs	(9,893)	(12,333)
Acquisition of Black Warrior Methane and Black Warrior Transmission, net of $2.8 million cash acquired	2,533	0
Proceeds from sale of property, plant and equipment	0	20
Net cash used in investing activities	(17,888)	(21,792)
FINANCING ACTIVITIES
Dividends paid	(3,126)	(2,613)
Principal repayments of finance lease obligations	(7,203)	(8,247)
Other	(3,716)	(2,539)
Net cash used in financing activities	(14,045)	(13,399)
Net increase in cash and cash equivalents	38,208	10,031
Cash and cash equivalents at beginning of period	395,839	211,916
Cash and cash equivalents at end of period	$ 434,047	$ 221,947

CONDENSED STATEMENTS OF CASH _2

CONDENSED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Statement of Cash Flows [Abstract]
Cash acquired from acquisition	$ 2.8

Business and Basis of Presentat

Business and Basis of Presentation	3 Months Ended
Business and Basis of Presentation	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	Business and Basis of Presentation Description of the Business Warrior Met Coal, Inc. (the "Company") is a U.S. based environmentally and socially minded supplier to the global steel industry. The Company is dedicated entirely to mining non-thermal met coal used as a critical component of steel production by metal manufacturers in Europe, South America and Asia. The Company is a large-scale, low-cost producer and exporter of premium met coal, also known as hard-coking coal ("HCC"), operating highly efficient longwall operations in its underground mines based in Alabama. The HCC that the Company produces from the Blue Creek coal seam contains very low sulfur, has strong coking properties and is of a similar quality to coal referred to as the premium HCC produced in Australia. The Company also generates ancillary revenues from the sale of natural gas extracted as a byproduct from the underground coal mines and royalty revenues from leased properties. Basis of Presentation The accompanying financial statements are presented in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In our opinion, the financial statements include all adjustments (consisting of normal recurring accruals) necessary in order to make the financial statements not misleading. For further information, refer to the financial statements and related notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2021 (the "2021 Annual Report"). Operating results for the three months ended March 31, 2022 are not necessarily indicative of the final results that may be expected for the year ended December 31, 2022. The balance sheet at December 31, 2021 has been derived from the audited financial statements for the year ended December 31, 2021 included in the 2021 Annual Report. Collective Bargaining Agreement The Company's Collective Bargaining Agreement contract with the UMWA expired on April 1, 2021. While the Company continues to engage in good faith negotiations with the UMWA, the Company has not reached a new contract and the UMWA is engaging in a strike. As a result of the strike, the Company initially idled Mine No. 4 and scaled back operations at Mine No. 7. During the current quarter, the Company restarted operations at Mine No. 4. Due to the reduced operations at Mine No. 4 and Mine No. 7, the Company incurred idle mine expenses of $3.0 million for the three months ended March 31, 2022. These expenses are reported separately in the Condensed Statements of Operations and represent expenses incurred, such as electricity, insurance and maintenance labor. The Company has also incurred approximately $6.7 million of business interruption expenses for the three months ended March 31, 2022, which represent non-recurring expenses that are directly attributable to the ongoing UMWA strike for incremental safety and security, labor negotiations and other expenses. These expenses are also presented separately in the Condensed Statements of Operations. Black Warrior Methane (“BWM”) and Black Warrior Transmission (“BWT”) On March 1, 2022, the Company acquired the remaining 50% interest in BWM and BWT for $0.3 million. The purchase consideration has been preliminarily allocated to the assets acquired and liabilities assumed based upon their estimated fair values at the date of acquisition. A full and detailed valuation of the assets and liabilities is being completed with the assistance of an independent third party and certain information and analysis remains pending at this time. Accordingly, the allocation is preliminary and may change as additional information becomes available and is assessed by the Company. The final allocation of the consideration transferred may include adjustments to the fair value estimates of identifiable assets and liabilities, after a full review has been completed. The acquisition is not deemed to be material to the condensed financial statements.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
Summary of Significant Accounting Policies	Mar. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting PoliciesThe Company's significant accounting policies are consistent with those disclosed in Note 2 to its audited financial statements included in the 2021 Annual Report, except for changes related to new accounting pronouncements described in "New Accounting Pronouncements." Cash and Cash Equivalents Cash and cash equivalents include short-term deposits and highly liquid investments that have original maturities of three months or less when purchased and are stated at cost, which approximates fair value. Short-Term Investments Instruments with maturities greater than three months, but less than twelve months, are included in short-term investments. The Company purchases United States Treasury bills with maturities ranging from six to twelve months which are classified as held to maturity and are carried at amortized cost, which approximates fair value. The Company also purchases fixed income securities and certificates of deposits with varying maturities that are classified as available for sale and are carried at fair value. Securities classified as held to maturity are those securities that management has the intent and ability to hold to maturity. As of March 31, 2022 and December 31, 2021, short-term investments consisted of $8.5 million in cash and fixed income securities. The short-term investments are posted as collateral for the self-insured black lung related claims asserted by or on behalf of former employees of Walter Energy, Inc. ("Walter Energy") and its subsidiaries, which were assumed by the Company and relate to periods prior to March 31, 2016. Revenue Recognition Revenue is recognized when performance obligations under the terms of a contract with the Company's customers are satisfied; for all contracts this occurs when control of the promised goods have been transferred to its customers. For coal shipments to domestic customers via rail, control is transferred when the railcar is loaded. For coal shipments to international customers via ocean vessel, control is transferred when the vessel is loaded at the Port of Mobile, Alabama. For natural gas sales, control is transferred when the gas has been transferred to the pipeline. Revenue is disaggregated between coal sales within the Company's mining segment and natural gas sales which is included in all other revenues, as disclosed in Note 13. Since February 2017, the Company has had an arrangement with XCoal Energy & Resources ("XCoal") to serve as XCoal's strategic partner for exports of low-volatility HCC. Under this arrangement, XCoal takes title to and markets coal that the Company would historically have sold on the spot market, in an amount of the greater of (i) 10% of the Company's total production during the applicable term of the arrangement or (ii) 250,000 metric tons. During the three months ended March 31, 2022 and 2021, XCoal accounted for approximately $83.5 million, or 21.6% of total sales, and $106.2 million, or 50.9% of total sales, respectively. Trade Accounts Receivable and Allowance for Credit Losses Trade accounts receivable represent customer obligations that are derived from revenue recognized from contracts with customers. Credit is extended based on an evaluation of the individual customer's financial condition. The Company maintains trade credit insurance on the majority of its customers and the geographic regions of coal shipments to these customers. In some instances, the Company requires letters of credit, cash collateral or prepayments from its customers on or before shipment to mitigate the risk of loss. These efforts have consistently resulted in the Company recognizing no historical credit losses. The Company also has never had to have a claim against its trade credit insurance policy. In order to estimate the allowance for credit losses on trade accounts receivable, the Company utilizes an aging approach in which potential impairment is calculated based on how long a receivable has been outstanding (e.g., current, 1-31 days, 31-60 days, etc.). The Company calculates an expected credit loss rate based on the Company’s historical credit loss rate, the risk characteristics of our customers, and the current met coal and steel market environments. As of March 31, 2022 and December 31, 2021, the estimated allowance for credit losses was immaterial and did not have a material impact on the Company's financial statements. New Accounting Pronouncements In November 2021, the Financial Accounting Standards Board ("FASB") issued ASU 2021-10, “Disclosures by Business Entities about Government Assistance,” which requires business entities to make annual disclosures about transactions with a government accounted for by analogizing to a grant or contribution accounting model. The required annual disclosures include the nature of the transaction, the related accounting policy, the financial statement line items affected and the amounts

Inventories, net

Inventories, net	3 Months Ended
Inventories, net	Mar. 31, 2022
Inventory Disclosure [Abstract]
Inventories, net	Inventories, net Inventories, net are summarized as follows (in thousands): March 31, 2022 December 31, 2021 Coal $ 70,250 $ 24,185 Raw materials, parts, supplies and other, net 40,284 35,435 Total inventories, net $ 110,535 $ 59,619

Income Taxes

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended March 31, 2022, the Company estimated its annual effective tax rate and applied this effective tax rate to its year-to-date pretax income at the end of the interim reporting period. The tax effect of unusual or infrequently occurring items, including the effects of changes in tax laws or rates and changes in judgment about the realizability of deferred tax assets, are reported in the interim period in which they occur. For the three months ended March 31, 2022, the Company had income tax expense of $33.5 million. For the three months ended March 31, 2021, the Company utilized a discrete period method to calculate taxes, as it did not believe that the annual effective tax rate method represented a reliable estimate given the uncertainty at the time surrounding the COVID-19 pandemic, the Chinese ban on Australian coal and other potentially disruptive factors and its impact on the Company's annual guidance. For the three months ended March 31, 2021, the Company had income tax expense of $23.6 million. The income tax expense of $23.6 million was due to the establishment of a non-cash $47.8 million state deferred income tax asset valuation allowance, discussed below, offset partially by a net non-cash income tax benefit of $22.9 million due to the remeasurement of state deferred income tax assets and liabilities and $1.3 million of net income tax benefit from the Internal Revenue Code ("IRC") Section 45I Marginal Well Credit, depletion and other adjustments. The Marginal Well Credit is a production-based tax credit that provides a credit for qualified natural gas production. The credit is phased out when natural gas prices exceed certain levels. On February 12, 2021, the Alabama Governor signed into law Alabama House Bill 170, now Act 2021-1 (the "Act"). The Act makes several changes to the state’s business tax structure. Among the provisions of the Act, is the repeal of the so-called corporate income tax “throwback rule.” That rule required all sales originating in Alabama and delivered to a jurisdiction where the seller was not subject to tax, to be included in the seller’s Alabama income tax base. Thus, prior to repeal of the throwback rule, the Company had to rely on its Alabama NOL carryforwards to shelter taxes imposed under such throwback rule. As a result of the now repealed throwback rule, effective January 1, 2021, all such sales should now be excluded from Alabama taxable income without the need to utilize Alabama NOLs. As a result of the repeal of the throwback rule, in the first quarter of 2021, the Company remeasured its Alabama deferred income tax assets and liabilities and recorded the non-cash income tax benefit noted above of $22.9 million. Additionally, the Company determined that it is not more likely than not that the Company would have sufficient taxable income to utilize all of the Company’s Alabama deferred income tax assets prior to expiration. Therefore, in the first quarter of 2021, the Company established a non-cash valuation allowance of $47.8 million against such deferred income tax assets.

Debt

Debt	3 Months Ended
Debt	Mar. 31, 2022
Debt Disclosure [Abstract]
Debt	Debt Debt consisted of the following (in thousands): March 31, December 31, 2021 Weighted Average Interest Rate at March 31, 2022 Final Maturity Senior Secured Notes $ 350,000 $ 350,000 7.875% 2028 ABL Borrowings — — Varies 1 2026 Debt discount/premium, net (9,922) (10,194) Total debt 340,078 339,806 Less: current debt — — Total long-term debt $ 340,078 $ 339,806 (1) The weighted average interest rate on our ABL Facility is based on the Secured Overnight Financing Rate which rate varies between 1.5% and 2.0% based on the quarterly availability under the borrowing base plus a credit adjustment spread of 0.11448% to 0.26161%. Senior Secured Notes On December 6, 2021, the Company issued $350.0 million in aggregate principal amount of 7.875% senior secured notes due 2028 (the “Notes”) at an initial price of 99.343% of their face amount. The Notes were issued to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”), and to certain non-U.S. persons in transactions outside the United States in accordance with Regulation S under the Securities Act. The Company used the net proceeds of the offering of the Notes, together with cash on hand, to fund the redemption of all of the Company’s outstanding 8.00% senior secured notes due 2024 (the “Existing Notes”), including payment of the redemption premium in connection with such redemption. The Notes will mature on December 1, 2028. ABL Facility On December 6, 2021, the Company entered into the Second Amended and Restated Asset-Based Revolving Credit Agreement (the “Second Amended and Restated Credit Agreement”), by and among the Company and certain of its subsidiaries, as borrowers, the guarantors party thereto, the lenders from time to time party thereto and Citibank, as administrative agent (in such capacity, the "Agent"), which amends and restates in its entirety the existing Amended and Restated Asset-Based Revolving Credit Agreement (as amended, the “ABL Facility”). The Second Amended and Restated Credit Agreement, among other things, (i) extended the maturity date of the ABL Facility to December 6, 2026; (ii) changed the calculation of the interest rate payable on borrowings from being based on a London Inter-Bank Offered Rate to be based on a Secured Overnight Financing Rate, with corresponding changes to the applicable interest rate margins with respect to such borrowings, (iii) amended certain definitions related to the calculation of the borrowing base; (iv) increased the commitments that may be used to issue letters of credit to $65.0 million; and (v) amended certain baskets contained in the covenants to conform to the baskets contained in the indenture governing the Notes. The Second Amended and Restated Credit Agreement also allows the Company to borrow up to $132.0 million through October 14, 2023, decreasing to $116.0 million through November 2026, subject to availability under the borrowing base and other conditions. As of March 31, 2022, no loans were outstanding under the ABL Facility and there were $9.4 million of letters of credit issued and outstanding under the ABL Facility. At March 31, 2022, the Company had $122.7 million of availability under the ABL Facility (calculated net of $9.4 million of letters of credit outstanding at such time).

Other Long-Term Liabilities

Other Long-Term Liabilities	3 Months Ended
Other Long-Term Liabilities	Mar. 31, 2022
Other Liabilities Disclosure [Abstract]
Other Long-Term Liabilities	Other Long-Term Liabilities Other long-term liabilities are summarized as follows (in thousands): March 31, 2022 December 31, 2021 Black lung obligations $ 34,606 $ 34,482 Other 503 1,842 Total other long-term liabilities $ 35,109 $ 36,324

Leases

Leases	3 Months Ended
Leases	Mar. 31, 2022
Leases [Abstract]
Leases	Leases The Company primarily enters into rental agreements for certain mining equipment that are for periods of 12 months or less, some of which include options to extend the leases. Leases that are for periods of 12 months or less are not recorded on the balance sheet. The Company recognizes lease expense on these agreements on a straight-line basis over the lease term. Additionally, the Company has certain finance leases for mining equipment that expire over various contractual periods. These leases have remaining lease terms of one Supplemental balance sheet information related to leases was as follows (in thousands): March 31, 2022 December 31, 2021 Finance lease right-of-use assets, net (1) $ 72,982 $ 75,692 Finance lease liabilities Current 21,910 23,622 Noncurrent 24,853 28,434 Total finance lease liabilities $ 46,763 $ 52,056 Weighted average remaining lease term - finance leases (in months) 32.5 35.1 Weighted average discount rate - finance leases (2) 6.04 % 6.11 % (1) Finance lease right-of-use assets are recorded net of accumulated amortization of $22.3 million and $17.7 million and are included in property, plant and equipment, net in the Condensed Balance Sheet as of March 31, 2022 and the Balance Sheet as of December 31, 2021, respectively. (2) When an implicit discount rate is not readily available in a lease, the Company uses its incremental borrowing rate based on information available at the commencement date when determining the present value of lease payments. The components of lease expense were as follows (in thousands): For the three months ended 2022 2021 Operating lease cost (1): $ 5,990 $ 1,189 Finance lease cost: Amortization of leased assets 4,621 4,125 Interest on lease liabilities 880 774 Net lease cost $ 11,491 $ 6,088 (1) Includes leases that are for periods of 12 months or less. Maturities of lease liabilities were as follows (in thousands): Finance Leases (1) 2022 18,538 2023 27,551 2024 3,195 2025 1,353 2026 156 Thereafter — Total 50,793 Less: amount representing interest (4,030) Present value of lease liabilities $ 46,763 (1) Finance lease payments include $3.9 million of future payments required under signed lease agreements that have not yet commenced. Supplemental cash flow information related to leases was as follows (in thousands): For the three months ended 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 880 $ 774 Financing cash flows from finance leases $ 7,203 $ 8,247 Non-cash right-of-use assets obtained in exchange for lease obligations: Finance leases $ 1,911 $ 35,288 As of March 31, 2022, the Company had additional commitments for finance leases, primarily for mining equipment, that have not yet commenced of $3.9 million. These finance leases will commence during fiscal year 2022 and 2023 with lease terms of one
Leases	Leases The Company primarily enters into rental agreements for certain mining equipment that are for periods of 12 months or less, some of which include options to extend the leases. Leases that are for periods of 12 months or less are not recorded on the balance sheet. The Company recognizes lease expense on these agreements on a straight-line basis over the lease term. Additionally, the Company has certain finance leases for mining equipment that expire over various contractual periods. These leases have remaining lease terms of one Supplemental balance sheet information related to leases was as follows (in thousands): March 31, 2022 December 31, 2021 Finance lease right-of-use assets, net (1) $ 72,982 $ 75,692 Finance lease liabilities Current 21,910 23,622 Noncurrent 24,853 28,434 Total finance lease liabilities $ 46,763 $ 52,056 Weighted average remaining lease term - finance leases (in months) 32.5 35.1 Weighted average discount rate - finance leases (2) 6.04 % 6.11 % (1) Finance lease right-of-use assets are recorded net of accumulated amortization of $22.3 million and $17.7 million and are included in property, plant and equipment, net in the Condensed Balance Sheet as of March 31, 2022 and the Balance Sheet as of December 31, 2021, respectively. (2) When an implicit discount rate is not readily available in a lease, the Company uses its incremental borrowing rate based on information available at the commencement date when determining the present value of lease payments. The components of lease expense were as follows (in thousands): For the three months ended 2022 2021 Operating lease cost (1): $ 5,990 $ 1,189 Finance lease cost: Amortization of leased assets 4,621 4,125 Interest on lease liabilities 880 774 Net lease cost $ 11,491 $ 6,088 (1) Includes leases that are for periods of 12 months or less. Maturities of lease liabilities were as follows (in thousands): Finance Leases (1) 2022 18,538 2023 27,551 2024 3,195 2025 1,353 2026 156 Thereafter — Total 50,793 Less: amount representing interest (4,030) Present value of lease liabilities $ 46,763 (1) Finance lease payments include $3.9 million of future payments required under signed lease agreements that have not yet commenced. Supplemental cash flow information related to leases was as follows (in thousands): For the three months ended 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 880 $ 774 Financing cash flows from finance leases $ 7,203 $ 8,247 Non-cash right-of-use assets obtained in exchange for lease obligations: Finance leases $ 1,911 $ 35,288 As of March 31, 2022, the Company had additional commitments for finance leases, primarily for mining equipment, that have not yet commenced of $3.9 million. These finance leases will commence during fiscal year 2022 and 2023 with lease terms of one

Net Income (Loss) per Share

Net Income (Loss) per Share	3 Months Ended
Net Income (Loss) per Share	Mar. 31, 2022
Earnings Per Share [Abstract]
Net Income (Loss) per Share	Net Income (Loss) per Share Basic and diluted net income (loss) per share was calculated as follows (in thousands, except per share data): For the three months ended 2022 2021 Numerator: Net income (loss) $ 146,249 $ (21,355) Denominator: Weighted-average shares used to compute net income (loss) per share—basic 51,532 51,274 Dilutive restrictive stock awards (1) 102 — Weighted-average shares used to compute net income (loss) per share—diluted 51,634 51,274 Net income (loss) per share—basic $ 2.84 $ (0.42) Net income (loss) per share—diluted $ 2.83 $ (0.42) (1) In periods of net loss, the number of shares used to calculate diluted earnings per share is the same as basic earnings per share; therefore, the effect of dilutive securities is zero for such periods. On February 16, 2022, the Company awarded 320,156 restricted stock unit awards under the Company's 2017 Equity Incentive Plan (the "2017 Equity Plan"). These awards have certain service-based, performance-based and market-based vesting conditions, as applicable. The service-based awards vest over a period of three years and the performance-based and market-based awards are based on the Company's performance in each of the three years. As of March 31, 2022, there were 284,734 restricted stock unit awards for which the service-based vesting conditions for these awards were not met as of the measurement date. As such, these awards were excluded from basic earnings per share. As of March 31, 2022, there were 485,102 restricted stock unit awards for which the performance-based and market-based vesting conditions were not met as of the measurement date and, as such, these awards were excluded from basic and diluted earnings per share. Based on the Company's closing share price on March 31, 2022, there were 19,448 restricted stock unit awards classified as a liability. As of March 31, 2022, there were 13,157 shares of its common stock contingently issuable upon the settlement of a vested restricted stock unit award under the 2017 Equity Plan. The settlement date for these awards is the earlier of a change in control as described in the 2016 Equity Plan or 2017 Equity Plan, as applicable, or five years from the grant date. These awards are vested and, as such, have been included in the weighted average shares used to compute basic and diluted net income (loss) per share.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Environmental Matters The Company is subject to a wide variety of laws and regulations concerning the protection of the environment, both with respect to the construction and operation of its plants, mines and other facilities and with respect to remediating environmental conditions that may exist at its own and other properties. The Company believes it is in compliance with federal, state and local environmental laws and regulations. The Company accrues for environmental expenses resulting from existing conditions that relate to past operations when the costs are probable and can be reasonably estimated. As of March 31, 2022 and December 31, 2021, there were no accruals for environmental matters other than asset retirement obligations for mine reclamation. Miscellaneous Litigation From time to time, the Company is party to lawsuits arising in the ordinary course of its businesses. The Company records costs relating to these matters when a loss is probable and the amount can be reasonably estimated. The effect of the outcome of these matters on the Company’s future results of operations cannot be predicted with certainty as any such effect depends on future results of operations and the amount and timing of the resolution of such matters. As of March 31, 2022 and December 31, 2021, there were no items accrued for miscellaneous litigation. On July 15, 2015, Walter Energy and certain of its wholly owned U.S. subsidiaries, including Jim Walter Resources, Inc. (“JWR”) filed voluntary petitions for relief under Chapter 11 of Title 11 of the U.S. Bankruptcy Code (the “Chapter 11 Cases”) in the Northern District of Alabama, Southern Division. On December 7, 2015, Walter Energy Canada Holdings, Inc., Walter Canadian Coal Partnership and their Canadian affiliates (collectively “Walter Canada”) applied for and were granted protection under the Companies’ Creditors Arrangement Act (the “CCAA”) pursuant to an Initial Order of the Supreme Court of British Columbia. As a result of the Company’s acquisition of certain core operating assets of Walter Energy during the Chapter 11 Cases, the Company received $0.7 million from the Chapter 11 Cases which is reflected as other income in the Condensed Statement of Operations for the three months ended March 31, 2022. Commitments and Contingencies—Other The Company is party to various transportation and throughput agreements with rail and barge transportation providers and the Alabama State Port Authority. These agreements contain annual minimum tonnage guarantees with respect to coal transported from the mine sites to the Port of Mobile, Alabama, the unloading of rail cars or barges, and the loading of vessels. If the Company does not meet its minimum throughput obligations, which are based on annual minimum amounts, it is required to pay the transportation providers or the Alabama State Port Authority a contractually specified amount per metric ton for the difference between the actual throughput and the minimum throughput requirement. At March 31, 2022 and December 31, 2021, the Company had no liability recorded for minimum throughput requirements. Royalty Obligations

Stockholders' Equity

Stockholders' Equity	3 Months Ended
Stockholders' Equity	Mar. 31, 2022
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Stock Repurchase Program On March 26, 2019, the Company's board of directors (the "Board") approved the Company's second stock repurchase program (the “Stock Repurchase Program”) that authorizes repurchases of up to an aggregate of approximately $70.0 million of the Company's outstanding common stock. The Company fully exhausted its previous stock repurchase program of $40.0 million of its outstanding common stock. The Stock Repurchase Program does not require the Company to repurchase a specific number of shares or have an expiration date. The Stock Repurchase Program may be suspended or discontinued by the Board at any time without prior notice. Under the Stock Repurchase Program, the Company may repurchase shares of its common stock from time to time, in amounts, at prices and at such times as the Company deems appropriate, subject to market and industry conditions, share price, regulatory requirements as determined from time to time by the Company and other considerations. The Company’s repurchases may be executed using open market purchases or privately negotiated transactions in accordance with applicable securities laws and regulations, including Rule 10b-18 of the Exchange Act and repurchases may be executed pursuant to Rule 10b5-1 under the Exchange Act. Repurchases will be subject to limitations in the ABL Facility and the Indenture. The Company intends to fund repurchases under the Stock Repurchase Program from cash on hand and/or other sources of liquidity. As of March 31, 2022, the Company has repurchased 500,000 shares for approximately $10.6 million, leaving approximately $58.8 million of share repurchases authorized under the Stock Repurchase Program. Regular Quarterly Dividend On February 18, 2022, the Board declared a regular quarterly cash dividend of $0.06 per share, totaling $3.1 million, which was paid on March 10, 2022, to stockholders of record as of the close of business on March 3, 2022. On April 26, 2022, the Board declared a regular quarterly cash dividend of $0.06 per share, totaling approximately $3.1 million, which will be paid on May 13, 2022, to stockholders of record as of the close of business on May 6, 2022. May 2022 Special Dividend

Derivative Instruments

Derivative Instruments	3 Months Ended
Derivative Instruments	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments The Company enters into natural gas swap contracts from time to time to hedge the exposure to variability in expected future cash flows associated with the fluctuations in the price of natural gas related to the Company’s forecasted sales. As of March 31, 2022, the Company had natural gas swap contracts outstanding with notional amounts totaling 5,900,000 metric million British thermal units maturing in the first quarter of 2023. As of December 31, 2021, the Company had 6,100,000 metric million British thermal unit natural gas swap contracts outstanding. The Company’s natural gas swap contracts economically hedge certain risks but are not designated as hedges for financial reporting purposes. All changes in the fair value of these derivative instruments are recorded as other revenues in the

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
Fair Value of Financial Instruments	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial InstrumentsThe following table presents information about the Company’s financial liabilities measured at fair value on a recurring basis as of March 31, 2022 and indicates the level of the fair value hierarchy utilized to determine such fair value (in thousands): Fair Value Measurements as of March 31, 2022 Using: Level 1 Level 2 Level 3 Total Liabilities: Natural gas swap contracts $ — $ 7,638 $ — $ 7,638 Fair Value Measurements as of December 31, 2021 Using: Level 1 Level 2 Level 3 Total Assets: Natural gas swap contracts $ — $ 4,043 $ — $ 4,043 The Company had no assets or any other liabilities measured at fair value on a recurring basis as of March 31, 2022 or December 31, 2021. During the three months ended March 31, 2022, there were no transfers between Level 1, Level 2 and Level 3. The Company uses quoted dealer prices for similar contracts in active over-the-counter markets for determining fair value of Level 2 liabilities. There were no changes to the valuation techniques used to measure liability fair values on a recurring basis during the three months ended March 31, 2022. The following methods and assumptions were used to estimate the fair value for which the fair value option was not elected: Cash and cash equivalents, short-term investments, receivables and trade accounts payable— The carrying amounts reported in the Condensed Balance Sheets approximate fair value due to the short-term nature of these assets and liabilities.

Segment Information

Segment Information	3 Months Ended
Segment Information	Mar. 31, 2022
Segment Reporting [Abstract]
Segment Information	Segment Information The Company identifies a business as an operating segment if: (i) it engages in business activities from which it may earn revenues and incur expenses; (ii) its operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”), who is the Company’s Chief Executive Officer, to make decisions about resources to be allocated to the segment and assess its performance; and (iii) it has available discrete financial information. The Company has determined that its two underground mining operations are its operating segments. The CODM reviews financial information at the operating segment level to allocate resources and to assess the operating results and financial performance for each operating segment. Operating segments are aggregated into a reportable segment if the operating segments have similar quantitative economic characteristics and if the operating segments are similar in the following qualitative characteristics: (i) nature of products and services; (ii) nature of production processes; (iii) type or class of customer for their products and services; (iv) methods used to distribute the products or provide services; and (v) if applicable, the nature of the regulatory environment. The Company has determined that the two operating segments are similar in both quantitative and qualitative characteristics and thus the two operating segments have been aggregated into one reportable segment. The Company has determined that its natural gas and royalty businesses did not meet the criteria in ASC 280 to be considered as operating or reportable segments. Therefore, the Company has included their results in an “all other” category as a reconciling item to consolidated amounts. The Company does not allocate all of its assets, or its depreciation and depletion expense, selling, general and administrative expenses, transactions costs, interest expense, and income tax expense by segment. The following tables include reconciliations of segment information to consolidated amounts (in thousands): For the three months ended 2022 2021 Revenues Mining $ 382,433 $ 206,989 All other (3,781) 6,775 Total revenues $ 378,652 $ 213,764 For the three months ended 2022 2021 Capital Expenditures Mining $ 7,155 $ 8,619 All other 3,373 860 Total capital expenditures $ 10,528 $ 9,479 The Company evaluates the performance of its segment based on Segment Adjusted EBITDA, which is defined as net income (loss) adjusted for other revenues, cost of other revenues, depreciation and depletion, selling, general and administrative, business interruption, idle mine, other income, interest expense, net, income tax (expense) benefit, and certain transactions or adjustments that the CODM does not consider for the purposes of making decisions to allocate resources among segments or assessing segment performance. Segment Adjusted EBITDA does not represent and should not be considered as an alternative to cost of sales under GAAP and may not be comparable to other similarly titled measures used by other companies. Below is a reconciliation of Segment Adjusted EBITDA to net income (loss), which is its most directly comparable financial measure calculated and presented in accordance with GAAP (in thousands): For the three months ended 2022 2021 Segment Adjusted EBITDA $ 247,092 $ 52,639 Other revenues (3,781) 6,775 Cost of other revenues (7,040) (7,795) Depreciation and depletion (25,797) (32,903) Selling, general and administrative (13,929) (7,637) Business interruption (6,688) — Idle mine (3,008) — Other income (loss) 675 (109) Interest expense, net (7,822) (8,693) Income tax (expense) benefit (33,453) (23,632) Net income (loss) $ 146,249 $ (21,355)

Subsequent Event

Subsequent Event	3 Months Ended
Subsequent Event	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Event	Subsequent EventOn May 3, 2022, the Company announced that it is relaunching the development of its Blue Creek reserves into a new, world-class longwall mine located in Alabama near its existing mines.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of PresentationThe accompanying financial statements are presented in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In our opinion, the financial statements include all adjustments (consisting of normal recurring accruals) necessary in order to make the financial statements not misleading.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include short-term deposits and highly liquid investments that have original maturities of three months or less when purchased and are stated at cost, which approximates fair value.
Short-Term Investments	Short-Term Investments Instruments with maturities greater than three months, but less than twelve months, are included in short-term investments. The Company purchases United States Treasury bills with maturities ranging from six to twelve months which are classified as held to maturity and are carried at amortized cost, which approximates fair value. The Company also purchases fixed income securities and certificates of deposits with varying maturities that are classified as available for sale and are carried at fair value. Securities classified as held to maturity are those securities that management has the intent and ability to hold to maturity.
Revenue Recognition	Revenue Recognition Revenue is recognized when performance obligations under the terms of a contract with the Company's customers are satisfied; for all contracts this occurs when control of the promised goods have been transferred to its customers. For coal shipments to domestic customers via rail, control is transferred when the railcar is loaded. For coal shipments to international customers via ocean vessel, control is transferred when the vessel is loaded at the Port of Mobile, Alabama. For natural gas sales, control is transferred when the gas has been transferred to the pipeline. Revenue is disaggregated between coal sales within the Company's mining segment and natural gas sales which is included in all other revenues, as disclosed in Note 13.
Trade Accounts Receivable and Allowance for Credit Losses	Trade Accounts Receivable and Allowance for Credit Losses Trade accounts receivable represent customer obligations that are derived from revenue recognized from contracts with customers. Credit is extended based on an evaluation of the individual customer's financial condition. The Company maintains trade credit insurance on the majority of its customers and the geographic regions of coal shipments to these customers. In some instances, the Company requires letters of credit, cash collateral or prepayments from its customers on or before shipment to mitigate the risk of loss. These efforts have consistently resulted in the Company recognizing no historical credit losses. The Company also has never had to have a claim against its trade credit insurance policy. In order to estimate the allowance for credit losses on trade accounts receivable, the Company utilizes an aging approach in which potential impairment is calculated based on how long a receivable has been outstanding (e.g., current, 1-31 days, 31-60 days, etc.). The Company calculates an expected credit loss rate based on the Company’s historical credit loss rate, the risk characteristics of our customers, and the current met coal and steel market environments. As of March 31, 2022 and December 31, 2021, the estimated allowance for credit losses was immaterial and did not have a material impact on the Company's financial statements.
New Accounting Pronouncements	New Accounting Pronouncements In November 2021, the Financial Accounting Standards Board ("FASB") issued ASU 2021-10, “Disclosures by Business Entities about Government Assistance,” which requires business entities to make annual disclosures about transactions with a government accounted for by analogizing to a grant or contribution accounting model. The required annual disclosures include the nature of the transaction, the related accounting policy, the financial statement line items affected and the amounts

Inventories, net (Tables)

Inventories, net (Tables)	3 Months Ended
Inventories, net (Tables)	Mar. 31, 2022
Inventory Disclosure [Abstract]
Schedule of Inventories, Net	Inventories, net are summarized as follows (in thousands): March 31, 2022 December 31, 2021 Coal $ 70,250 $ 24,185 Raw materials, parts, supplies and other, net 40,284 35,435 Total inventories, net $ 110,535 $ 59,619

Debt (Tables)

Debt (Tables)	3 Months Ended
Debt (Tables)	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Debt consisted of the following (in thousands): March 31, December 31, 2021 Weighted Average Interest Rate at March 31, 2022 Final Maturity Senior Secured Notes $ 350,000 $ 350,000 7.875% 2028 ABL Borrowings — — Varies 1 2026 Debt discount/premium, net (9,922) (10,194) Total debt 340,078 339,806 Less: current debt — — Total long-term debt $ 340,078 $ 339,806 (1) The weighted average interest rate on our ABL Facility is based on the Secured Overnight Financing Rate which rate varies between 1.5% and 2.0% based on the quarterly availability under the borrowing base plus a credit adjustment spread of 0.11448% to 0.26161%.

Other Long-Term Liabilities (Ta

Other Long-Term Liabilities (Tables)	3 Months Ended
Other Long-Term Liabilities (Tables)	Mar. 31, 2022
Other Liabilities Disclosure [Abstract]
Other Long-Term Liabilities	Other long-term liabilities are summarized as follows (in thousands): March 31, 2022 December 31, 2021 Black lung obligations $ 34,606 $ 34,482 Other 503 1,842 Total other long-term liabilities $ 35,109 $ 36,324

Leases (Tables)

Leases (Tables)	3 Months Ended
Leases (Tables)	Mar. 31, 2022
Leases [Abstract]
Supplemental Balance Sheet Information	Supplemental balance sheet information related to leases was as follows (in thousands): March 31, 2022 December 31, 2021 Finance lease right-of-use assets, net (1) $ 72,982 $ 75,692 Finance lease liabilities Current 21,910 23,622 Noncurrent 24,853 28,434 Total finance lease liabilities $ 46,763 $ 52,056 Weighted average remaining lease term - finance leases (in months) 32.5 35.1 Weighted average discount rate - finance leases (2) 6.04 % 6.11 % (1) Finance lease right-of-use assets are recorded net of accumulated amortization of $22.3 million and $17.7 million and are included in property, plant and equipment, net in the Condensed Balance Sheet as of March 31, 2022 and the Balance Sheet as of December 31, 2021, respectively.
Components of Lease Expense	The components of lease expense were as follows (in thousands): For the three months ended 2022 2021 Operating lease cost (1): $ 5,990 $ 1,189 Finance lease cost: Amortization of leased assets 4,621 4,125 Interest on lease liabilities 880 774 Net lease cost $ 11,491 $ 6,088 (1) Includes leases that are for periods of 12 months or less.
Maturities of Lease Liabilities	Maturities of lease liabilities were as follows (in thousands): Finance Leases (1) 2022 18,538 2023 27,551 2024 3,195 2025 1,353 2026 156 Thereafter — Total 50,793 Less: amount representing interest (4,030) Present value of lease liabilities $ 46,763 (1) Finance lease payments include $3.9 million of future payments required under signed lease agreements that have not yet commenced.
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows (in thousands): For the three months ended 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 880 $ 774 Financing cash flows from finance leases $ 7,203 $ 8,247 Non-cash right-of-use assets obtained in exchange for lease obligations: Finance leases $ 1,911 $ 35,288

Net Income (Loss) per Share (Ta

Net Income (Loss) per Share (Tables)	3 Months Ended
Net Income (Loss) per Share (Tables)	Mar. 31, 2022
Earnings Per Share [Abstract]
Basic and Diluted Net Income per Share	Basic and diluted net income (loss) per share was calculated as follows (in thousands, except per share data): For the three months ended 2022 2021 Numerator: Net income (loss) $ 146,249 $ (21,355) Denominator: Weighted-average shares used to compute net income (loss) per share—basic 51,532 51,274 Dilutive restrictive stock awards (1) 102 — Weighted-average shares used to compute net income (loss) per share—diluted 51,634 51,274 Net income (loss) per share—basic $ 2.84 $ (0.42) Net income (loss) per share—diluted $ 2.83 $ (0.42) (1) In periods of net loss, the number of shares used to calculate diluted earnings per share is the same as basic earnings per share; therefore, the effect of dilutive securities is zero for such periods.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
Fair Value of Financial Instruments (Tables)	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value, Liabilities Measured on Recurring Basis	The following table presents information about the Company’s financial liabilities measured at fair value on a recurring basis as of March 31, 2022 and indicates the level of the fair value hierarchy utilized to determine such fair value (in thousands): Fair Value Measurements as of March 31, 2022 Using: Level 1 Level 2 Level 3 Total Liabilities: Natural gas swap contracts $ — $ 7,638 $ — $ 7,638 Fair Value Measurements as of December 31, 2021 Using: Level 1 Level 2 Level 3 Total Assets: Natural gas swap contracts $ — $ 4,043 $ — $ 4,043

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
Segment Information (Tables)	Mar. 31, 2022
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following tables include reconciliations of segment information to consolidated amounts (in thousands): For the three months ended 2022 2021 Revenues Mining $ 382,433 $ 206,989 All other (3,781) 6,775 Total revenues $ 378,652 $ 213,764
Reconciliation of Capital Expenditures from Segments to Consolidated	For the three months ended 2022 2021 Capital Expenditures Mining $ 7,155 $ 8,619 All other 3,373 860 Total capital expenditures $ 10,528 $ 9,479
Reconciliation of Net Income (Loss) from Segments to Consolidated	Below is a reconciliation of Segment Adjusted EBITDA to net income (loss), which is its most directly comparable financial measure calculated and presented in accordance with GAAP (in thousands): For the three months ended 2022 2021 Segment Adjusted EBITDA $ 247,092 $ 52,639 Other revenues (3,781) 6,775 Cost of other revenues (7,040) (7,795) Depreciation and depletion (25,797) (32,903) Selling, general and administrative (13,929) (7,637) Business interruption (6,688) — Idle mine (3,008) — Other income (loss) 675 (109) Interest expense, net (7,822) (8,693) Income tax (expense) benefit (33,453) (23,632) Net income (loss) $ 146,249 $ (21,355)

Business and Basis of Present_2

Business and Basis of Presentation (Details) - USD ($) $ in Thousands	Mar. 01, 2022	Mar. 31, 2022	Mar. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Idle mine		$ 3,008	$ 0
Business interruption		$ 6,688	$ 0
BWM & BWT
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Payments to acquire equity method investments	$ 300
BWM
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Ownership interest in equity method investment (as a percent)	50.00%
BWT
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Ownership interest in equity method investment (as a percent)	50.00%

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Short-Term Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Short-term investments	$ 8,506	$ 8,505
Cash and Fixed Income Securities
Schedule of Held-to-maturity Securities [Line Items]
Short-term investments	$ 8,500	$ 8,500

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Revenue Recognition (Details) t in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)t	Mar. 31, 2021USD ($)
Concentration Risk [Line Items]
Percent of total production transferred for title and marketing	10.00%
Maximum total production transferred for title and marketing (in tons) \| t	250
Other revenues	$ 378,652	$ 213,764
XCoal \| Customer Concentration Risk \| Revenue
Concentration Risk [Line Items]
Other revenues	$ 83,500	$ 106,200
Concentration risk, percentage	21.60%	50.90%

Inventories, net (Details)

Inventories, net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Coal	$ 70,250	$ 24,185
Raw materials, parts, supplies and other, net	40,284	35,435
Total inventories, net	$ 110,535	$ 59,619

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Tax Credit Carryforward [Line Items]
Income tax expense	$ 33,453	$ 23,632
Income tax benefit from remeasurement of deferred income tax assets and liabilities		22,900
Income tax benefit from Internal Revenue Code		1,300
State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Deferred income tax valuation allowance		$ 47,800

Debt - Schedule of Long-Term De

Debt - Schedule of Long-Term Debt (Details) - USD ($)	3 Months Ended
Debt - Schedule of Long-Term Debt (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt discount/premium, net	$ (9,922,000)	$ (10,194,000)
Total debt	340,078,000	339,806,000
Less: current debt	0	0
Total long-term debt	340,078,000	339,806,000
ABL Borrowings
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	0
ABL Borrowings \| Secured Overnight Financing Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.00%
ABL Borrowings \| Secured Overnight Financing Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.50%
ABL Borrowings \| Credit Adjustment Spread \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.26161%
ABL Borrowings \| Credit Adjustment Spread \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.11448%
Senior Secured Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 350,000,000	$ 350,000,000
Weighted average interest rate (as a percent)	7.875%

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	Oct. 15, 2023	Mar. 31, 2022	Dec. 31, 2021	Dec. 06, 2021
Debt Instrument [Line Items]
Letters of credit outstanding		$ 9,400,000
Senior Secured Notes
Debt Instrument [Line Items]
Long-term debt, gross		350,000,000	$ 350,000,000
Senior Secured Notes \| Senior Secured Notes Due2028
Debt Instrument [Line Items]
Face amount of debt				$ 350,000,000
Stated interest rate (as a percent)				7.875%
Percentage of initial price				99.343%
Senior Secured Notes \| Senior Secured Notes Due 2024, Existing Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)				8.00%
ABL Borrowings \| ABL Facility
Debt Instrument [Line Items]
Amount of borrowings available		122,700,000
ABL Borrowings
Debt Instrument [Line Items]
Long-term debt, gross		$ 0	$ 0
ABL Borrowings \| Citibank
Debt Instrument [Line Items]
Aggregate lender commitment				$ 65,000,000
ABL Borrowings \| Second Amended And Restated Credit Agreement \| Citibank
Debt Instrument [Line Items]
Aggregate lender commitment				$ 132,000,000
ABL Borrowings \| Second Amended And Restated Credit Agreement \| Citibank \| Forecast
Debt Instrument [Line Items]
Aggregate lender commitment	$ 116,000,000

Other Long-Term Liabilities (De

Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Liabilities Disclosure [Abstract]
Black lung obligations	$ 34,606	$ 34,482
Other	503	1,842
Total other long-term liabilities	$ 35,109	$ 36,324

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Mar. 31, 2022USD ($)
Lessor, Lease, Description [Line Items]
Finance leases that have not yet commenced	$ 3.9
Minimum
Lessor, Lease, Description [Line Items]
Remaining lease terms	1 year
Finance leases not yet commenced, term	1 year
Maximum
Lessor, Lease, Description [Line Items]
Remaining lease terms	5 years
Finance leases not yet commenced, term	2 years

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Finance lease right-of-use assets, net	$ 72,982	$ 75,692
Finance lease liabilities
Current	21,910	23,622
Noncurrent	24,853	28,434
Total finance lease liabilities	$ 46,763	$ 52,056
Weighted average remaining lease term - finance leases (in months)	2 years 8 months 15 days	2 years 11 months 4 days
Weighted average discount rate - finance leases (as a percent)	6.04%	6.11%
Accumulated amortization	$ 22,300	$ 17,700
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment, net	Property, plant and equipment, net

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Operating lease cost	$ 5,990	$ 1,189
Finance lease cost:
Amortization of leased assets	4,621	4,125
Interest on lease liabilities	880	774
Net lease cost	$ 11,491	$ 6,088

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Mar. 31, 2022USD ($)
Leases [Abstract]
2022	$ 18,538
2023	27,551
2024	3,195
2025	1,353
2026	156
Thereafter	0
Total	50,793
Less: amount representing interest	(4,030)
Present value of lease liabilities	46,763
Future payments required under signed lease agreements that have not yet commenced	$ 3,900

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	$ 880	$ 774
Financing cash flows from finance leases	7,203	8,247
Non-cash right-of-use assets obtained in exchange for lease obligations:
Finance leases	$ 1,911	$ 35,288

Net Income (Loss) per Share - S

Net Income (Loss) per Share - Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income (loss)	$ 146,249	$ (21,355)
Denominator:
Weighted-average shares used to compute net income (loss) per share-basic (in shares)	51,532	51,274
Dilutive restrictive stock awards (in shares)	102	0
Weighted-average shares used to compute net income (loss) per share-basic (in shares)	51,634	51,274
Net income (loss) per share-basic (in dollars per share)	$ 2.84	$ (0.42)
Net income (loss) per share-diluted (in dollars per share)	$ 2.83	$ (0.42)

Net Income (Loss) per Share - N

Net Income (Loss) per Share - Narrative (Details) - USD ($) $ in Millions	Feb. 16, 2021	Mar. 31, 2022
Class of Stock [Line Items]
Stock compensation expense		$ 6.3
Restricted Stock Units (RSUs) \| 2017 Equity Plan
Class of Stock [Line Items]
Shares awarded (in shares)	320,156
Shares to be issued upon settlement of awards (in shares)		19,448
Common stock shares contingently issuable (in shares)		13,157
Service-based RSUs \| 2017 Equity Plan
Class of Stock [Line Items]
Vesting period		3 years
RSUs excluded from computation of earnings per share (in shares)		284,734
Performance and market-based RSUs \| 2017 Equity Plan
Class of Stock [Line Items]
Vesting period		3 years
RSUs excluded from computation of earnings per share (in shares)		485,102
Phantom Share Units (PSUs) \| 2016 and 2017 Equity Plans
Class of Stock [Line Items]
Settlement period		5 years

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	3 Months Ended
Commitments and Contingencies (Details) - USD ($)	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Settlement proceeds	$ 700,000
Throughput obligation	0		$ 0
Coal royalty expense	$ 25,200,000	$ 12,700,000

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($)	May 03, 2022	Apr. 26, 2022	Feb. 18, 2021	Mar. 31, 2022	Mar. 26, 2019	May 02, 2018
Class of Stock [Line Items]
Dividends declared (in dollars per share)			$ 0.06
Regular quarterly cash dividend			$ 3,100,000
Subsequent Event
Class of Stock [Line Items]
Dividends declared (in dollars per share)	$ 0.50	$ 0.06
Regular quarterly cash dividend		$ 3,100,000
New Stock Repurchase Program
Class of Stock [Line Items]
Authorized amount of stock to be repurchased, value					$ 70,000,000
Shares repurchased (in shares)				500,000
Treasury stock purchase, value				$ 10,600,000
Remaining authorized repurchase amount				$ 58,800,000
The First Stock Repurchase Program
Class of Stock [Line Items]
Authorized amount of stock to be repurchased, value						$ 40,000,000

Derivative Instruments (Details

Derivative Instruments (Details) $ in Millions	3 Months Ended	12 Months Ended
Derivative Instruments (Details) $ in Millions	Mar. 31, 2022USD ($)BTU	Dec. 31, 2021USD ($)BTU
Derivative [Line Items]
Loss recognized on derivatives	$ 13.2
Realized losses on derivatives	$ 1.5
Natural Gas \| Commodity Contract \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative energy measure (in BTUs) \| BTU	5,900,000	6,100,000
Natural gas swap contracts, current liability	$ 7.6	$ 4
Natural gas swap contracts, current asset		$ 4

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - Fair Value, Recurring - Natural Gas - Commodity Contract - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	$ 7,638
Derivative assets		$ 4,043
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0
Derivative assets		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	7,638
Derivative assets		4,043
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	$ 0
Derivative assets		$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Narrative (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Letters of credit outstanding	$ 9,400,000
ABL Facility \| ABL Borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of borrowings available	122,700,000
Senior Secured Notes Due 2024, Existing Notes \| Senior Secured Notes \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of debt instrument	$ 368,400,000	$ 359,600,000
ABL Borrowings \| Citibank
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding debt under ABL Facility		0
ABL Borrowings \| Citibank \| Letter of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Letters of credit issued and outstanding		$ 9,400,000

Segment Information - Narrative

Segment Information - Narrative (Details)	3 Months Ended
Segment Information - Narrative (Details)	Mar. 31, 2022segment
Segment Reporting [Abstract]
Number of operating segments	2
Number of reportable segments	1

Segment Information - Reconcili

Segment Information - Reconciliation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Total revenues	$ 378,652	$ 213,764
Segment Reconciling Items
Segment Reporting Information [Line Items]
Total revenues	(3,781)	6,775
Mining \| Operating Segments
Segment Reporting Information [Line Items]
Total revenues	$ 382,433	$ 206,989

Segment Information - Reconci_2

Segment Information - Reconciliation of Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Capital Expenditures	$ 10,528	$ 9,479
Segment Reconciling Items
Segment Reporting Information [Line Items]
Capital Expenditures	3,373	860
Mining \| Operating Segments
Segment Reporting Information [Line Items]
Capital Expenditures	$ 7,155	$ 8,619

Segment Information - Reconci_3

Segment Information - Reconciliation of Net Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue from External Customer [Line Items]
Segment Adjusted EBITDA	$ 247,092	$ 52,639
Other revenues	378,652	213,764
Cost of other revenues	(7,040)	(7,795)
Depreciation and depletion	(25,797)	(32,903)
Selling, general and administrative	(13,929)	(7,637)
Business interruption	(6,688)	0
Idle mine	(3,008)	0
Other income (loss)	675	(109)
Interest expense, net	(7,822)	(8,693)
Income tax (expense) benefit	(33,453)	(23,632)
Net income (loss)	146,249	(21,355)
Other revenues
Revenue from External Customer [Line Items]
Other revenues	$ (3,781)	$ 6,775