Subsidiary Guarantors (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 245,979	$ 17,487	$ 18,989	$ 3,343
Accounts receivable, net	116,203	30,610
Accrued revenue	191,558	96,825
Derivative instruments	692,554	183,000
Other	5,866
Total current assets	1,252,160	333,564
Unproved properties	2,060,936	1,513,136
Proved properties	6,515,221	3,621,672
Fresh water distribution systems	421,012	231,684
Gathering systems and facilities	1,197,239	584,626
Other property and equipment	37,687	15,757
Property and equipment, gross	10,232,095	5,966,875
Less accumulated depletion, depreciation, and amortization	(879,643)	(407,219)
Property and equipment, net	9,352,452	5,559,656
Derivative instruments	899,997	677,780
Other assets, net	68,886	42,581
Total assets	11,573,495	6,613,581
Liabilities and Stockholders' Equity
Accounts payable	531,564	370,640
Accrued liabilities	168,614	77,126
Revenue distributions payable	182,352	96,589
Deferred income tax liability	260,373	69,191
Other	12,202	8,037
Total current liabilities	1,155,105	622,229
Long-term debt	4,362,550	2,078,999
Deferred income tax liability	534,423	278,580
Other long-term liabilities	47,587	35,113
Total liabilities	6,099,665	3,014,921
Common stock	2,621	2,620
Additional paid-in capital	3,513,725	3,402,180
Accumulated earnings	867,447	193,860
Total stockholders' equity	4,383,793	3,598,660
Noncontrolling interest in consolidated subsidiary	1,090,037
Total equity	5,473,830	3,598,660	1,673,737	1,958,806
Total liabilities and equity	11,573,495	6,613,581
Eliminations
Current assets:
Intercompany receivables	(19,026)
Other	(1)
Total current assets	(19,027)
Investment in subsidiary	(137,423)
Total assets	(156,450)
Liabilities and Stockholders' Equity
Intercompany payable	(19,026)
Other	(1)
Total current liabilities	(19,027)
Total liabilities	(19,027)
Parent net investment	114,999
Partners' capital	(1,342,459)
Total stockholders' equity	(1,227,460)
Noncontrolling interest in consolidated subsidiary	1,090,037
Total equity	(137,423)
Total liabilities and equity	(156,450)
Antero Resources Corp | Reportable legal entity
Current assets:
Cash and cash equivalents	15,787	17,487
Accounts receivable, net	116,203
Intercompany receivables	1,380
Accrued revenue	191,558
Derivative instruments	692,554
Other	5,348
Total current assets	1,022,830
Unproved properties	2,060,936
Proved properties	6,515,221
Fresh water distribution systems	421,012
Gathering systems and facilities	16,532
Other property and equipment	37,687
Property and equipment, gross	9,051,388
Less accumulated depletion, depreciation, and amortization	(828,533)
Property and equipment, net	8,222,855
Derivative instruments	899,997
Investment in subsidiary	137,423
Other assets, net	51,718
Total assets	10,334,823
Liabilities and Stockholders' Equity
Accounts payable	485,628
Intercompany payable	17,646
Accrued liabilities	163,268
Revenue distributions payable	182,352
Deferred income tax liability	260,373
Other	12,203
Total current liabilities	1,121,470
Long-term debt	4,247,550
Deferred income tax liability	534,423
Other long-term liabilities	47,587
Total liabilities	5,951,030
Common stock	2,621
Additional paid-in capital	3,513,725
Accumulated earnings	867,447
Total stockholders' equity	4,383,793
Total equity	4,383,793
Total liabilities and equity	10,334,823
Guarantor Subsidiary | Reportable legal entity
Current assets:
Other	1
Total current assets	1
Total assets	1
Liabilities and Stockholders' Equity
Long-term debt	115,000
Total liabilities	115,000
Parent net investment	(114,999)
Total stockholders' equity	(114,999)
Total equity	(114,999)
Total liabilities and equity	1
Non-Guarantor Subsidiaries | Reportable legal entity
Current assets:
Cash and cash equivalents	230,192
Intercompany receivables	17,646
Other	518
Total current assets	248,356
Gathering systems and facilities	1,180,707
Property and equipment, gross	1,180,707
Less accumulated depletion, depreciation, and amortization	(51,110)
Property and equipment, net	1,129,597
Other assets, net	17,168
Total assets	1,395,121
Liabilities and Stockholders' Equity
Accounts payable	45,936
Intercompany payable	1,380
Accrued liabilities	5,346
Total current liabilities	52,662
Total liabilities	52,662
Partners' capital	1,342,459
Total stockholders' equity	1,342,459
Total equity	1,342,459
Total liabilities and equity	$ 1,395,121