Condensed Consolidated Statement of Equity - USD ($) $ in Thousands	Common Stock	Additional paid-in capital	Accumulated earnings	Noncontrolling Interests	Total
Balances at Dec. 31, 2018	$ 3,086	$ 6,485,174	$ 1,177,548	$ 821,669	$ 8,487,477
Balances (in shares) at Dec. 31, 2018	308,594
Increase (Decrease) in Stockholders' Equity
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes	$ 1	(451)			(450)
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes (in shares)	147
Issuance of common units in Antero Midstream Partners LP upon vesting of equity-based compensation awards, net of units withheld for income taxes		(85)		56	(29)
Equity-based compensation		7,801		1,102	8,903
Net income (loss) and comprehensive income (loss)			978,763	46,993	1,025,756
Distributions to non-controlling interests				(85,076)	(85,076)
Effect of deconsolidation of Antero Midstream Partners LP		(359,039)		(784,744)	(1,143,783)
Balance at Mar. 31, 2019	$ 3,087	6,133,400	2,156,311		8,292,798
Balance (in shares) at Mar. 31, 2019	308,741
Balances at Dec. 31, 2018	$ 3,086	6,485,174	1,177,548	821,669	8,487,477
Balances (in shares) at Dec. 31, 2018	308,594
Increase (Decrease) in Stockholders' Equity
Net income (loss) and comprehensive income (loss)					1,067,924
Balance at Jun. 30, 2019	$ 3,091	6,138,130	2,198,479		8,339,700
Balance (in shares) at Jun. 30, 2019	309,123
Balances at Mar. 31, 2019	$ 3,087	6,133,400	2,156,311		8,292,798
Balances (in shares) at Mar. 31, 2019	308,741
Increase (Decrease) in Stockholders' Equity
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes	$ 4	(1,819)			(1,815)
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes (in shares)	382
Equity-based compensation		6,549			6,549
Net income (loss) and comprehensive income (loss)			42,168		42,168
Balance at Jun. 30, 2019	$ 3,091	6,138,130	2,198,479		8,339,700
Balance (in shares) at Jun. 30, 2019	309,123
Balances at Dec. 31, 2019	$ 2,959	6,130,365	837,419		6,970,743
Balances (in shares) at Dec. 31, 2019	295,941,000
Increase (Decrease) in Stockholders' Equity
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes	$ 2	(34)			(32)
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes (in shares)	178,000
Repurchases and retirements of common stock	$ (272)	(42,418)			(42,690)
Repurchases and retirements of common stock (in shares)	(27,193,000)
Equity-based compensation		3,329			3,329
Net income (loss) and comprehensive income (loss)			(338,810)		(338,810)
Balance at Mar. 31, 2020	$ 2,689	6,091,242	498,609		6,592,540
Balance (in shares) at Mar. 31, 2020	268,926,000
Balances at Dec. 31, 2019	$ 2,959	6,130,365	837,419		6,970,743
Balances (in shares) at Dec. 31, 2019	295,941,000
Increase (Decrease) in Stockholders' Equity
Net income (loss) and comprehensive income (loss)					(801,878)
Balance at Jun. 30, 2020	$ 2,684	6,098,167	35,305	296,823	6,432,979
Balance (in shares) at Jun. 30, 2020	268,390,000
Balances at Mar. 31, 2020	$ 2,689	6,091,242	498,609		6,592,540
Balances (in shares) at Mar. 31, 2020	268,926,000
Increase (Decrease) in Stockholders' Equity
Issuance of common units in Martica Holdings, LLC				300,000	300,000
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes	$ 5	(305)			(300)
Issuance of common stock upon vesting of equity-based compensation awards, net of shares withheld for income taxes (in shares)	464,000
Repurchases and retirements of common stock	$ (10)	(743)			(753)
Repurchases and retirements of common stock (in shares)	(1,000,000)
Equity-based compensation		7,973			7,973
Net income (loss) and comprehensive income (loss)			(463,304)	236	(463,068)
Distributions to non-controlling interests				(3,413)	(3,413)
Balance at Jun. 30, 2020	$ 2,684	$ 6,098,167	$ 35,305	$ 296,823	$ 6,432,979
Balance (in shares) at Jun. 30, 2020	268,390,000