Subsidiary Guarantors - Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	$ 80,810		$ 305,558
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depletion Depreciation Amortization And Accretion	228,934		203,366
Impairment of unproved properties	50,536		26,899
Commodity derivative gains	(22,437)		(438,775)
Gains on settled commodity derivatives	101,341		44,849
Marketing derivative gains	94,234	$ (21,400)
Gains on settled marketing derivatives	110,042
Deferred income tax expense (benefit)	9,120		131,346
Equity-based compensation expense	21,156		25,503
Income Loss From Equity Method Investments	(7,862)		(2,231)
Equity Method Investment Dividends Or Distributions	7,085
Other	969		87
Increase (Decrease) in Operating Capital	56,089		97,337
Net cash provided by operating activities	541,549		393,939
Cash flows used in investing activities:
Additions to proved properties			(49,664)
Additions to unproved properties	(49,569)		(55,542)
Drilling and completion costs	(359,868)		(306,925)
Additions to water handling and treatment systems	(40,285)		(36,954)
Additions to gathering systems and facilities	(93,670)		(66,559)
Additions to other property and equipment	(2,571)		(590)
Investments in unconsolidated affiliates	(17,389)		(159,889)
Change in other assets	(217)		(12,350)
Net cash used in investing activities	(563,569)		(688,473)
Cash flows from financing activities:
Issuance of common units by Antero Midstream Partners LP			223,119
Borrowings (repayments) on bank credit facility, net	75,000		70,000
Distributions to noncontrolling interest in consolidated subsidiary	(55,915)		(27,149)
Employee tax withholding for settlement of equity compensation awards	(1,084)		(1,657)
Other	(1,269)		(1,389)
Net cash provided by financing activities	16,732		262,924
Net increase (decrease) in cash and cash equivalents	(5,288)		(31,610)
Cash and cash equivalents, beginning of period	28,441		31,610
Cash and cash equivalents, end of period	23,153	28,441
Eliminations
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	(42,128)		(37,929)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Change In Value Of Contingent Consideration	(3,874)		(3,526)
Equity in net income of subsidiaries	(20,128)		(6,300)
Distributions from non-guarantor subsidiary	(36,088)		(30,484)
Increase (Decrease) in Operating Capital	7,585		(789)
Net cash provided by operating activities	(90,759)		(75,502)
Cash flows used in investing activities:
Drilling and completion costs	60,759		45,018
Additions to water handling and treatment systems	(6,088)
Net cash used in investing activities	54,671		45,018
Cash flows from financing activities:
Distributions to noncontrolling interest in consolidated subsidiary	36,088		30,484
Net cash provided by financing activities	36,088		30,484
Parent | Reportable legal entity
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	14,833		268,396
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depletion Depreciation Amortization And Accretion	196,468		175,830
Change In Value Of Contingent Consideration	(3,874)		(3,526)
Impairment of unproved properties	50,536		26,899
Commodity derivative gains	(22,437)		(438,775)
Gains on settled commodity derivatives	101,341		44,849
Marketing derivative gains	94,234
Gains on settled marketing derivatives	110,042
Deferred income tax expense (benefit)	9,120		131,346
Equity-based compensation expense	14,945		19,217
Equity in net income of subsidiaries	20,128		6,300
Other	279		(544)
Distributions from non-guarantor subsidiary	36,088		30,484
Increase (Decrease) in Operating Capital	65,023		109,217
Net cash provided by operating activities	498,258		369,693
Cash flows used in investing activities:
Additions to proved properties			(49,664)
Additions to unproved properties	(49,569)		(55,542)
Drilling and completion costs	(420,627)		(351,943)
Additions to gathering systems and facilities	104
Additions to other property and equipment	(2,571)		(590)
Change in other assets	1,067		(6,476)
Net cash used in investing activities	(471,596)		(464,215)
Cash flows from financing activities:
Borrowings (repayments) on bank credit facility, net	(30,000)		80,000
Employee tax withholding for settlement of equity compensation awards	(1,066)		(1,657)
Other	(1,235)		(1,389)
Net cash provided by financing activities	(32,301)		76,954
Net increase (decrease) in cash and cash equivalents	(5,639)		(17,568)
Cash and cash equivalents, beginning of period	20,078		17,568
Cash and cash equivalents, end of period	14,439	20,078
Non-Guarantor Subsidiaries | Reportable legal entity
Cash flows from operating activities:
Net income (loss) including noncontrolling interests	108,105		75,091
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depletion Depreciation Amortization And Accretion	32,466		27,536
Change In Value Of Contingent Consideration	3,874		3,526
Equity-based compensation expense	6,211		6,286
Income Loss From Equity Method Investments	(7,862)		(2,231)
Equity Method Investment Dividends Or Distributions	7,085
Other	690		631
Increase (Decrease) in Operating Capital	(16,519)		(11,091)
Net cash provided by operating activities	134,050		99,748
Cash flows used in investing activities:
Additions to water handling and treatment systems	(34,197)		(36,954)
Additions to gathering systems and facilities	(93,774)		(66,559)
Investments in unconsolidated affiliates	(17,389)		(159,889)
Change in other assets	(1,284)		(5,874)
Net cash used in investing activities	(146,644)		(269,276)
Cash flows from financing activities:
Issuance of common units by Antero Midstream Partners LP			223,119
Borrowings (repayments) on bank credit facility, net	105,000		(10,000)
Distributions to noncontrolling interest in consolidated subsidiary	(92,003)		(57,633)
Employee tax withholding for settlement of equity compensation awards	(18)
Other	(34)
Net cash provided by financing activities	12,945		155,486
Net increase (decrease) in cash and cash equivalents	351		(14,042)
Cash and cash equivalents, beginning of period	8,363		$ 14,042
Cash and cash equivalents, end of period	$ 8,714	$ 8,363