Condensed Consolidating Financial Information - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue:
Revenues from contracts with customers									$ 4,133,139	$ 3,018,685	$ 2,161,071
Commodity derivative fair value gains (losses)									(87,594)	658,283	(514,181)
Marketing derivative gains									94,081	(21,394)
Gain on sale of assets											97,635
Total revenue and other	$ 1,045,649	$ 1,076,532	$ 989,344	$ 1,028,101	$ 1,021,726	$ 647,880	$ 790,389	$ 1,195,579	4,139,626	3,655,574	1,744,525
Operating expenses:
Production and ad valorem taxes									126,474	94,521	66,588
Impairment of unproved properties									549,437	159,598	162,935
Impairment of gathering systems and facilities									9,658	23,431	0
Depletion, depreciation, and amortization									972,465	824,610	809,873
Accretion of asset retirement obligations									2,819	2,610	2,473
General and administrative									240,344	251,196	239,324
Total operating expenses	1,092,279	1,071,728	1,022,107	881,607	834,667	719,932	666,646	694,236	4,067,721	2,915,481	2,720,326
Operating income (loss)	(46,630)	4,804	(32,763)	146,494	187,059	(72,052)	123,743	501,343	71,905	740,093	(975,801)
Equity in earnings of unconsolidated affiliates									40,280	20,194	485
Interest									(286,743)	(268,701)	(253,552)
Loss on early extinguishment of debt										(1,500)	(16,956)
Total other expenses									(246,463)	(250,007)	(270,023)
Income (loss) before income taxes									(174,558)	490,086	(1,245,824)
Provision for income tax benefit									128,857	295,051	496,376
Net income (loss) and comprehensive income (loss) including noncontrolling interest	18,736	(77,972)	(67,275)	80,810	529,614	(90,000)	39,965	305,558	(45,701)	785,137	(749,448)
Net income and comprehensive income attributable to noncontrolling interest	140,282	76,447	69,110	65,977	42,745	45,063	45,097	37,162	351,816	170,067	99,368
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation	$ (121,546)	$ (154,419)	$ (136,385)	$ 14,833	$ 486,869	$ (135,063)	$ (5,132)	$ 268,396	(397,517)	615,070	(848,816)
Natural gas sales
Revenue:
Revenues from contracts with customers									2,287,939	1,769,284	1,260,750
Natural gas liquids sales
Revenue:
Revenues from contracts with customers									1,177,777	870,441	432,992
Oil sales
Revenue:
Revenues from contracts with customers									187,178	108,195	61,319
Gathering, compression, water handling and treatment
Revenue:
Revenues from contracts with customers									21,344	12,720	12,961
Operating expenses:
Cost of goods and services sold									1,339,358	1,095,639	882,838
Marketing
Revenue:
Revenues from contracts with customers									458,901	258,045	393,049
Operating expenses:
Cost of goods and services sold									686,055	366,281	499,343
Exploration
Operating expenses:
Cost of goods and services sold									4,958	8,538	6,862
Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold									136,153	89,057	50,090
Reportable legal entity | Parent (Antero)
Revenue:
Commodity derivative fair value gains (losses)									(87,594)	658,283	(514,181)
Marketing derivative gains									94,081	(21,394)
Gain on sale of assets											93,776
Total revenue and other									4,031,065	3,660,212	1,746,029
Operating expenses:
Production and ad valorem taxes									122,305	90,832	69,485
Impairment of unproved properties									549,437	159,598	162,935
Impairment of gathering systems and facilities									4,470
Depletion, depreciation, and amortization									842,452	705,048	710,012
Accretion of asset retirement obligations									2,684	2,610	2,473
General and administrative									181,305	195,153	186,672
Change in fair value of contingent acquisition consideration									93,019	(13,476)	(16,489)
Total operating expenses									4,328,798	3,062,947	2,834,654
Operating income (loss)									(297,733)	597,265	(1,088,625)
Interest									(224,977)	(232,331)	(232,455)
Loss on early extinguishment of debt										(1,205)	(16,956)
Equity in earnings (loss) of consolidated subsidiaries									(3,664)	(43,710)	(7,156)
Total other expenses									(228,641)	(277,246)	(256,567)
Income (loss) before income taxes									(526,374)	320,019	(1,345,192)
Provision for income tax benefit									128,857	295,051	496,376
Net income (loss) and comprehensive income (loss) including noncontrolling interest									(397,517)	615,070	(848,816)
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation									(397,517)	615,070	(848,816)
Reportable legal entity | Parent (Antero) | Natural gas sales
Revenue:
Revenues from contracts with customers									2,287,939	1,769,975	1,260,750
Reportable legal entity | Parent (Antero) | Natural gas liquids sales
Revenue:
Revenues from contracts with customers									1,177,777	870,441	432,992
Reportable legal entity | Parent (Antero) | Oil sales
Revenue:
Revenues from contracts with customers									187,178	108,195	61,319
Reportable legal entity | Parent (Antero) | Gathering, compression, water handling and treatment
Operating expenses:
Cost of goods and services sold									1,792,898	1,441,129	1,146,221
Reportable legal entity | Parent (Antero) | Marketing
Revenue:
Revenues from contracts with customers									458,901	258,045	393,049
Operating expenses:
Cost of goods and services sold									686,055	366,281	499,343
Reportable legal entity | Parent (Antero) | Exploration
Operating expenses:
Cost of goods and services sold									4,958	8,538	6,862
Reportable legal entity | Parent (Antero) | Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold									142,234	93,758	50,651
Reportable legal entity | Parent (Antero) | Other
Revenue:
Revenues from contracts with customers									(87,217)	16,667	18,324
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream)
Revenue:
Gain on sale of assets									583		3,859
Total revenue and other									1,028,522	772,497	590,211
Operating expenses:
Production and ad valorem taxes									4,169	3,689	(2,897)
Impairment of gathering systems and facilities									5,771	23,431
Depletion, depreciation, and amortization									130,013	119,562	99,861
Accretion of asset retirement obligations									135
General and administrative									61,629	58,812	54,163
Change in fair value of contingent acquisition consideration									(93,019)	13,476	16,489
Total operating expenses									420,952	447,819	332,100
Operating income (loss)									607,570	324,678	258,111
Equity in earnings of unconsolidated affiliates									40,280	20,194	485
Interest									(61,906)	(37,262)	(21,893)
Loss on early extinguishment of debt										(295)
Total other expenses									(21,626)	(17,363)	(21,408)
Income (loss) before income taxes									585,944	307,315	236,703
Net income (loss) and comprehensive income (loss) including noncontrolling interest									585,944	307,315	236,703
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation									585,944	307,315	236,703
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream) | Gathering, compression, water handling and treatment
Revenue:
Revenues from contracts with customers									1,027,939	772,497	586,352
Operating expenses:
Cost of goods and services sold									49,550	39,147	28,097
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream) | Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold									262,704	189,702	136,387
Eliminations
Revenue:
Gain on sale of assets									(583)
Total revenue and other									(919,961)	(777,135)	(591,715)
Operating expenses:
Impairment of gathering systems and facilities									(583)
General and administrative									(2,590)	(2,769)	(1,511)
Change in fair value of contingent acquisition consideration									93,019	(13,476)	(16,489)
Total operating expenses									(682,029)	(595,285)	(446,428)
Operating income (loss)									(237,932)	(181,850)	(145,287)
Interest									140	892	796
Equity in earnings (loss) of consolidated subsidiaries									3,664	43,710	7,156
Total other expenses									3,804	44,602	7,952
Income (loss) before income taxes									(234,128)	(137,248)	(137,335)
Net income (loss) and comprehensive income (loss) including noncontrolling interest									(234,128)	(137,248)	(137,335)
Net income and comprehensive income attributable to noncontrolling interest									351,816	170,067	99,368
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation									(585,944)	(307,315)	(236,703)
Eliminations | Natural gas sales
Revenue:
Revenues from contracts with customers										(691)
Eliminations | Gathering, compression, water handling and treatment
Revenue:
Revenues from contracts with customers									(1,006,595)	(759,777)	(573,391)
Operating expenses:
Cost of goods and services sold									(503,090)	(384,637)	(291,480)
Eliminations | Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold									(268,785)	(194,403)	(136,948)
Eliminations | Other
Revenue:
Revenues from contracts with customers									$ 87,217	$ (16,667)	$ (18,324)