Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income tax expense from continuing operations
Current income tax expense (benefit)	$ 216	$ (209)	$ 5,048
Deferred income tax benefit	(74,293)	(397,273)	(79,158)
Total income tax benefit	$ (74,077)	$ (397,482)	$ (74,110)
U.S. Statutory federal income tax rate (as a percent)	21.00%	21.00%	21.00%
Reconciliation of income tax expense from continuing operations differs from the amount that would be computed by applying the U.S. statutory federal income tax rate to consolidated income
Federal income tax expense (benefit)	$ (47,919)	$ (348,158)	$ (77,122)
State income tax expense (benefit), net of federal benefit	(6,576)	(50,584)	(8,826)
Change in State tax rate, net of federal effect	(30,910)	2,291	24,041
Nondeductible equity-based compensation	1,117	4,490	6,920
Dividends received deduction	(3,832)	(4,013)	(4,201)
Noncontrolling interest	(7,862)	(1,801)	(10,998)
Deconsolidation adjustment			(6,626)
Change in valuation allowance	4,606	789	1,325
Nondeductible loss on 2026 Convertible Notes equitization	12,174
Other	5,125	(496)	1,377
Total income tax benefit	(74,077)	(397,482)	$ (74,110)
Deferred tax assets:
NOL carryforwards	569,523	565,433
Equity-based compensation	2,462	8,445
Investment in Antero Midstream	297,893	330,301
Unrealized losses on derivative instruments	158,779
Asset retirement obligations and other	15,051	17,206
Total deferred tax assets	1,043,708	921,385
Valuation allowance	(50,304)	(46,013)
Net deferred tax assets	993,404	875,372
Valuation allowance	50,304	46,013
Deferred tax liabilities:
Unrealized gains on derivative instruments		13,189
Oil and gas properties	1,254,182	1,188,599
Investment in Martica	51,166	59,586
2026 Convertible Notes and other	6,182	26,250
Total deferred tax liabilities	1,311,530	1,287,624
Net deferred tax liabilities	$ (318,126)	$ (412,252)