Subsidiary Guarantors - Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Current assets:
Accounts receivable	$ 57,013	$ 46,419
Accounts receivable, related parties		125,000
Accrued revenue	254,863	317,886
Derivative instruments	521,459	422,849
Other current assets	8,942	10,731
Total current assets	842,277	922,885
Unproved properties	1,277,476	1,368,854
Proved properties	11,989,302	11,859,817
Gathering systems and facilities	5,802	5,802
Other property and equipment	72,649	71,895
Property and equipment, gross	13,345,229	13,306,368
Less accumulated depletion, depreciation, and amortization	(3,408,099)	(3,327,629)
Property and equipment, net	9,937,130	9,978,739
Operating leases right-of-use assets	2,562,945	2,886,500
Derivative instruments	103,514	333,174
Investment in unconsolidated affiliate	279,805	1,055,177	$ 1,967,203
Other assets	18,319	21,094
Total assets	13,743,990	15,197,569	$ 17,330,880
Liabilities and Stockholders' Equity
Accounts payable	36,736	14,498
Accounts payable, related parties	73,375	97,883
Accrued liabilities	339,388	400,850
Revenue distributions payable	173,759	207,988
Derivative instruments	3,652	6,721
Short-term lease liabilities	230,499	305,320
Other current liabilities	6,831	6,879
Total current liabilities	864,240	1,040,139
Long-term debt	3,518,076	3,758,868
Deferred income tax liability	529,598	781,987
Derivative instruments	2,558	3,519
Long-term lease liabilities	2,334,227	2,583,678
Other liabilities	62,312	58,635
Total liabilities	7,311,011	8,226,826
Common stock	2,684	2,959
Additional paid-in capital	6,098,167	6,130,365
Accumulated earnings	35,305	837,419
Total stockholders' equity	6,136,156	6,970,743
Noncontrolling interests in consolidated subsidiary	296,823
Total liabilities and equity	13,743,990	15,197,569
Reportable legal entity | Parent (Antero)
Current assets:
Cash	(6,793)
Accounts receivable	57,013	46,419
Accounts receivable, related parties		125,000
Accrued revenue	249,201	317,886
Derivative instruments	521,459	422,849
Other current assets	8,942	10,731
Total current assets	829,822	922,885
Unproved properties	1,231,051	1,368,854
Proved properties	11,168,728	11,859,817
Gathering systems and facilities	5,802	5,802
Other property and equipment	72,649	71,895
Property and equipment, gross	12,478,230	13,306,368
Less accumulated depletion, depreciation, and amortization	(3,406,859)	(3,327,629)
Property and equipment, net	9,071,371	9,978,739
Operating leases right-of-use assets	2,562,945	2,886,500
Derivative instruments	103,514	333,174
Investment in unconsolidated affiliate	68,134	243,048
Investment in consolidated affiliates	795,965	812,129
Other assets	18,319	21,094
Total assets	13,450,070	15,197,569
Liabilities and Stockholders' Equity
Accounts payable	33,323	14,498
Accounts payable, related parties	447,284	397,333
Accrued liabilities	339,388	400,850
Revenue distributions payable	173,759	207,988
Derivative instruments	2,905	6,721
Short-term lease liabilities	230,499	305,320
Other current liabilities	6,831	6,879
Total current liabilities	1,233,989	1,339,589
Long-term debt	3,518,076	3,758,868
Deferred income tax liability	529,598	781,987
Derivative instruments	967	3,519
Long-term lease liabilities	2,334,227	2,583,678
Other liabilities	62,312	58,635
Total liabilities	7,679,169	8,526,276
Common stock	2,684	2,959
Additional paid-in capital	4,970,105	5,600,714
Accumulated earnings	798,112	1,067,620
Total stockholders' equity	5,770,901	6,671,293
Total liabilities and equity	13,450,070	15,197,569
Reportable legal entity | Guarantor Subsidiaries
Current assets:
Accounts receivable, related parties	365,255	299,450
Total current assets	365,255	299,450
Investment in unconsolidated affiliate	211,671	812,129
Total assets	576,926	1,111,579
Liabilities and Stockholders' Equity
Additional paid-in capital	1,341,780	1,341,780
Accumulated earnings	(764,854)	(230,201)
Total stockholders' equity	576,926	1,111,579
Total liabilities and equity	576,926	1,111,579
Reportable legal entity | Non-Guarantor Subsidiaries (Martica)
Current assets:
Cash	6,793
Accounts receivable, related parties	12,523
Accrued revenue	5,662
Total current assets	24,978
Unproved properties	46,425
Proved properties	820,574
Property and equipment, gross	866,999
Less accumulated depletion, depreciation, and amortization	(1,240)
Property and equipment, net	865,759
Total assets	890,737
Liabilities and Stockholders' Equity
Accounts payable	3,413
Accounts payable, related parties	3,869
Derivative instruments	747
Total current liabilities	8,029
Derivative instruments	1,591
Total liabilities	9,620
Common stock	879,070
Accumulated earnings	2,047
Total stockholders' equity	881,117
Total liabilities and equity	890,737
Eliminations
Current assets:
Accounts receivable, related parties	(377,778)	(299,450)
Total current assets	(377,778)	(299,450)
Investment in consolidated affiliates	(795,965)	(812,129)
Total assets	(1,173,743)	(1,111,579)
Liabilities and Stockholders' Equity
Accounts payable, related parties	(377,778)	(299,450)
Total current liabilities	(377,778)	(299,450)
Total liabilities	(377,778)	(299,450)
Common stock	(879,070)
Additional paid-in capital	(213,718)	(812,129)
Total stockholders' equity	(1,092,788)	(812,129)
Noncontrolling interests in consolidated subsidiary	296,823
Total liabilities and equity	$ (1,173,743)	$ (1,111,579)