Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforward	$ 581,349	$ 788,375
Divestiture contract obligation	105,227	112,199
Deferred compensation	25,733	22,121
Equity compensation	4,813	4,833
Asset retirement obligations	24,113	21,734
Interest expense carryforward	16,118	53,876
Lease right-of-use liabilities	19,395	9,954
Cumulative mark-to-market loss	30,307	32,221
Other	16,922	12,181
Total deferred tax assets	631,234	786,425
Deferred tax liabilities:
Depreciation and depletion	(935,710)	(879,163)
Lease right-of-use assets	(18,440)	(9,247)
Other	(10,655)	(15,657)
Total deferred tax liabilities	(964,805)	(904,067)
Net deferred tax liability	(333,571)	(117,642)
Federal
Valuation allowances:
Valuation allowances	(21,320)	(67,984)
State, net of federal benefit
Valuation allowances:
Valuation allowances	$ (171,423)	$ (203,085)