Subsidiary Guarantors - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended							9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue:
Revenues from contracts with customers	$ 1,019,555				$ 713,837			$ 2,865,104	$ 2,175,389
Commodity derivative fair value gains (losses)	57,019				(65,957)			134,793	458,459
Marketing derivative gains	(42)			$ (21,400)				94,081
Total revenue and other	1,076,532				647,880			3,093,978	2,633,848
Operating expenses:
Production and ad valorem taxes	30,518				22,995			82,232	70,341
Impairment of unproved properties	221,094				41,000			406,068	83,098
Impairment of gathering systems and facilities	1,157							9,658
Depletion, depreciation, and amortization	243,186				206,968			709,480	610,879
Accretion of asset retirement obligations	710				658			2,101	1,944
General and administrative	59,860				62,203			181,576	191,000
Total operating expenses	1,071,728				719,932			2,975,444	2,080,814
Operating income (loss)	4,804				(72,052)			118,534	553,034
Equity in earnings of unconsolidated affiliates	10,705				7,033			27,832	12,887
Interest	(74,528)				(70,059)			(208,303)	(205,311)
Equity in earnings (loss) of consolidated subsidiaries									12,887
Total other expenses	(63,823)				(63,026)			(180,471)	(192,424)
Income (loss) before income taxes	(59,019)				(135,078)			(61,937)	360,610
Provision for income tax (expense) benefit	(18,953)				45,078			(2,500)	(105,087)
Net income (loss) and comprehensive income (loss) including noncontrolling interest	(77,972)	$ (67,275)	$ 80,810		(90,000)	$ 39,965	$ 305,558	(64,437)	255,523
Net income and comprehensive income attributable to noncontrolling interest	76,447				45,063			211,534	127,322
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation	(154,419)				(135,063)			(275,971)	128,201
Gathering, compression, water handling and treatment
Revenue:
Revenues from contracts with customers	4,844				2,869			15,298	8,665
Operating expenses:
Cost of goods and services sold	326,504				282,134			926,228	815,710
Natural gas sales
Revenue:
Revenues from contracts with customers	527,122				409,141			1,498,324	1,330,062
Natural gas liquids sales
Revenue:
Revenues from contracts with customers	338,269				224,533			828,424	590,004
Oil sales
Revenue:
Revenues from contracts with customers	59,722				26,527			128,869	79,999
Marketing
Revenue:
Revenues from contracts with customers	89,598				50,767			394,189	166,659
Operating expenses:
Cost of goods and services sold	151,764				78,884			560,924	246,298
Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold	36,269				23,491			93,155	56,034
Exploration
Operating expenses:
Cost of goods and services sold	666				1,599			4,022	5,510
Reportable legal entity | Parent (Antero)
Revenue:
Commodity derivative fair value gains (losses)	57,019				(65,957)			134,793	458,459
Marketing derivative gains	(42)							94,081
Total revenue and other	1,077,015				648,081			3,095,061	2,636,604
Operating expenses:
Production and ad valorem taxes	29,352				22,002			79,045	67,576
Impairment of unproved properties	221,094				41,000			406,068	83,098
Impairment of gathering systems and facilities								4,470
Depletion, depreciation, and amortization	204,730				176,412			602,159	522,275
Accretion of asset retirement obligations	677				658			2,000	1,944
General and administrative	45,477				48,289			138,555	148,876
Accretion of contingent acquisition consideration								(11,841)	(9,672)
Total operating expenses	1,131,486				762,442			3,132,596	2,203,090
Operating income (loss)	(54,471)				(114,361)			(37,535)	433,514
Equity in earnings of unconsolidated affiliates									(21,582)
Interest	(57,632)				(60,906)			(165,519)	(178,644)
Equity in earnings (loss) of consolidated subsidiaries	(23,363)				(4,874)			(70,417)	(21,582)
Total other expenses	(80,995)				(65,780)			(235,936)	(200,226)
Income (loss) before income taxes	(135,466)				(180,141)			(273,471)	233,288
Provision for income tax (expense) benefit	(18,953)				45,078			(2,500)	(105,087)
Net income (loss) and comprehensive income (loss) including noncontrolling interest	(154,419)				(135,063)			(275,971)	128,201
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation	(154,419)				(135,063)			(275,971)	128,201
Reportable legal entity | Parent (Antero) | Gathering, compression, water handling and treatment
Operating expenses:
Cost of goods and services sold	442,602				369,538			1,236,655	1,070,522
Reportable legal entity | Parent (Antero) | Natural gas sales
Revenue:
Revenues from contracts with customers	527,122				409,141			1,498,324	1,330,062
Reportable legal entity | Parent (Antero) | Natural gas liquids sales
Revenue:
Revenues from contracts with customers	338,269				224,533			828,424	590,004
Reportable legal entity | Parent (Antero) | Oil sales
Revenue:
Revenues from contracts with customers	59,722				26,527			128,869	79,999
Reportable legal entity | Parent (Antero) | Marketing
Revenue:
Revenues from contracts with customers	89,598				50,767			394,189	166,659
Operating expenses:
Cost of goods and services sold	151,764				78,884			560,924	246,298
Reportable legal entity | Parent (Antero) | Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold	35,124				24,060			98,698	56,991
Reportable legal entity | Parent (Antero) | Exploration
Operating expenses:
Cost of goods and services sold	666				1,599			4,022	5,510
Reportable legal entity | Parent (Antero) | Other
Revenue:
Revenues from contracts with customers	5,327				3,070			16,381	11,421
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream)
Revenue:
Gain on sale of assets								583
Total revenue and other	266,205				193,629			746,771	562,165
Operating expenses:
Production and ad valorem taxes	1,166				993			3,187	2,765
Impairment of gathering systems and facilities	1,157							5,771
Depletion, depreciation, and amortization	38,456				30,556			107,321	88,604
Accretion of asset retirement obligations	33							101
General and administrative	15,015				14,316			44,967	43,562
Accretion of contingent acquisition consideration	4,020				2,556			11,841	9,672
Total operating expenses	140,156				110,458			394,355	304,730
Operating income (loss)	126,049				83,171			352,416	257,435
Equity in earnings of unconsolidated affiliates	10,705				7,033			27,832	12,887
Interest	(16,989)				(9,311)			(42,913)	(27,162)
Equity in earnings (loss) of consolidated subsidiaries									12,887
Total other expenses	(6,284)				(2,278)			(15,081)	(14,275)
Income (loss) before income taxes	119,765				80,893			337,335	243,160
Net income (loss) and comprehensive income (loss) including noncontrolling interest	119,765				80,893			337,335	243,160
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation	119,765				80,893			337,335	243,160
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream) | Gathering, compression, water handling and treatment
Revenue:
Revenues from contracts with customers	266,205				193,629			746,188	562,165
Operating expenses:
Cost of goods and services sold	12,701				10,468			36,469	28,492
Reportable legal entity | Non-Guarantor Subsidiaries (Antero Midstream) | Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold	67,608				51,569			184,698	131,635
Eliminations
Revenue:
Gain on sale of assets								(583)
Total revenue and other	(266,688)				(193,830)			(747,854)	(564,921)
Operating expenses:
Impairment of gathering systems and facilities								(583)
General and administrative	(632)				(402)			(1,946)	(1,438)
Accretion of contingent acquisition consideration	(4,020)				(2,556)			(11,841)	(9,672)
Total operating expenses	(199,914)				(152,968)			(551,507)	(427,006)
Operating income (loss)	(66,774)				(40,862)			(196,347)	(137,915)
Equity in earnings of unconsolidated affiliates									21,582
Interest	93				158			129	495
Equity in earnings (loss) of consolidated subsidiaries	23,363				4,874			70,417	21,582
Total other expenses	23,456				5,032			70,546	22,077
Income (loss) before income taxes	(43,318)				(35,830)			(125,801)	(115,838)
Net income (loss) and comprehensive income (loss) including noncontrolling interest	(43,318)				(35,830)			(125,801)	(115,838)
Net income and comprehensive income attributable to noncontrolling interest	76,447				45,063			211,534	127,322
Net income (loss) and comprehensive income (loss) attributable to Antero Resources Corporation	(119,765)				(80,893)			(337,335)	(243,160)
Eliminations | Gathering, compression, water handling and treatment
Revenue:
Revenues from contracts with customers	(261,361)				(190,760)			(730,890)	(553,500)
Operating expenses:
Cost of goods and services sold	(128,799)				(97,872)			(346,896)	(283,304)
Eliminations | Oil and Gas, Operation and Maintenance
Operating expenses:
Cost of goods and services sold	(66,463)				(52,138)			(190,241)	(132,592)
Eliminations | Other
Revenue:
Revenues from contracts with customers	$ (5,327)				$ (3,070)			$ (16,381)	$ (11,421)