Condensed Consolidating Financial Informations - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents		$ 28,441
Accounts receivable, net	$ 51,073	34,896
Accrued revenue	474,827	300,122
Derivative instruments	245,263	460,685
Other current assets	35,450	8,943
Total current assets	806,613	833,087
Unproved properties	1,767,600	2,266,673
Proved properties	12,705,672	11,096,462
Water handling and treatment systems	1,013,818	946,670
Gathering systems and facilities	2,470,708	2,050,490
Other property and equipment	65,842	57,429
Property and equipment, gross	18,023,640	16,417,724
Less accumulated depletion, depreciation, and amortization	(4,153,725)	(3,182,171)
Property and equipment, net	13,869,915	13,235,553
Derivative instruments	362,169	841,257
Investments in unconsolidated affiliates	433,642	303,302
Other assets, net	47,125	48,291
Total assets	15,519,464	15,261,490
Liabilities and Stockholders' Equity
Accounts payable	66,289	62,982
Accrued liabilities	465,070	443,225
Revenue distributions payable	310,827	209,617
Derivative instruments	532	28,476
Other current liabilities	10,822	17,796
Total current liabilities	853,540	762,096
Long-term debt	5,461,688	4,800,090
Deferred income tax liability	650,788	779,645
Derivative instruments		207
Other liabilities	65,971	43,316
Total liabilities	7,031,987	6,385,354
Common stock	3,086	3,164
Additional paid-in capital	6,485,174	6,570,952
Accumulated earnings	1,177,548	1,575,065
Total stockholders' equity	7,665,808	8,149,181
Noncontrolling interest in consolidated subsidiary	821,669	726,955
Total equity	8,487,477	8,876,136	$ 7,728,578	$ 7,286,678
Total liabilities and equity	15,519,464	15,261,490
Reportable legal entity | Parent (Antero)
Current assets:
Cash and cash equivalents		20,078
Accounts receivable, net	49,529	33,726
Intercompany receivables	383	6,459
Accrued revenue	474,827	300,122
Derivative instruments	245,263	460,685
Other current assets	13,937	8,273
Total current assets	783,939	829,343
Unproved properties	1,767,600	2,266,673
Proved properties	13,306,585	11,460,615
Gathering systems and facilities	17,825	17,929
Other property and equipment	65,770	57,429
Property and equipment, gross	15,157,780	13,802,646
Less accumulated depletion, depreciation, and amortization	(3,654,392)	(2,812,851)
Property and equipment, net	11,503,388	10,989,795
Derivative instruments	362,169	841,257
Investment in subsidiaries	(740,031)	(573,926)
Contingent acquisition consideration asset	114,995	208,014
Other assets, net	31,200	35,371
Total assets	12,055,660	12,329,854
Liabilities and Stockholders' Equity
Accounts payable	44,917	54,340
Intercompany payable	111,620	110,182
Accrued liabilities	392,949	338,819
Revenue distributions payable	310,827	209,617
Derivative instruments	532	28,476
Other current liabilities	4,621	17,587
Total current liabilities	865,466	759,021
Long-term debt	3,829,541	3,604,090
Deferred income tax liability	650,788	779,645
Derivative instruments		207
Other liabilities	57,890	42,906
Total liabilities	5,403,685	5,185,869
Common stock	3,086	3,164
Additional paid-in capital	5,471,341	5,565,756
Accumulated earnings	1,177,548	1,575,065
Total stockholders' equity	6,651,975	7,143,985
Total equity	6,651,975	7,143,985
Total liabilities and equity	12,055,660	12,329,854
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream)
Current assets:
Cash and cash equivalents		8,363
Accounts receivable, net	1,544	1,170
Intercompany receivables	115,378	110,182
Other current assets	21,513	670
Total current assets	138,435	120,385
Water handling and treatment systems	1,004,793	942,361
Gathering systems and facilities	2,452,883	2,032,561
Other property and equipment	72
Property and equipment, gross	3,457,748	2,974,922
Less accumulated depletion, depreciation, and amortization	(499,333)	(369,320)
Property and equipment, net	2,958,415	2,605,602
Investments in unconsolidated affiliates	433,642	303,302
Other assets, net	15,925	12,920
Total assets	3,546,417	3,042,209
Liabilities and Stockholders' Equity
Accounts payable	21,372	8,642
Intercompany payable	4,141	6,459
Accrued liabilities	72,121	106,006
Other current liabilities	2,052	209
Total current liabilities	99,686	121,316
Long-term debt	1,632,147	1,196,000
Contingent acquisition consideration	114,995	208,014
Other liabilities	8,081	410
Total liabilities	1,854,909	1,525,740
Partners' capital	1,691,508	1,516,469
Total stockholders' equity	1,691,508	1,516,469
Total equity	1,691,508	1,516,469
Total liabilities and equity	3,546,417	3,042,209
Eliminations
Current assets:
Intercompany receivables	(115,761)	(116,641)
Total current assets	(115,761)	(116,641)
Proved properties	(600,913)	(364,153)
Water handling and treatment systems	9,025	4,309
Property and equipment, gross	(591,888)	(359,844)
Property and equipment, net	(591,888)	(359,844)
Investment in subsidiaries	740,031	573,926
Contingent acquisition consideration asset	(114,995)	(208,014)
Total assets	(82,613)	(110,573)
Liabilities and Stockholders' Equity
Intercompany payable	(115,761)	(116,641)
Accrued liabilities		(1,600)
Other current liabilities	4,149
Total current liabilities	(111,612)	(118,241)
Contingent acquisition consideration	(114,995)	(208,014)
Total liabilities	(226,607)	(326,255)
Partners' capital	(1,691,508)	(1,516,469)
Additional paid-in capital	1,013,833	1,005,196
Total stockholders' equity	(677,675)	(511,273)
Noncontrolling interest in consolidated subsidiary	821,669	726,955
Total equity	143,994	215,682
Total liabilities and equity	$ (82,613)	$ (110,573)