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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Organization (Details) (USD $)	12 Months Ended		24 Months Ended	0 Months Ended
Organization (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Nov. 12, 2014	Oct. 16, 2013	Oct. 15, 2013	Jun. 30, 2013
Corporate reorganization and initial public offering
Common stock, shares issued	262,071,642us-gaap_CommonStockSharesIssued	262,049,659us-gaap_CommonStockSharesIssued	262,071,642us-gaap_CommonStockSharesIssued			224,375,000us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	262,071,642us-gaap_CommonStockSharesOutstanding	262,049,659us-gaap_CommonStockSharesOutstanding	262,071,642us-gaap_CommonStockSharesOutstanding			224,375,000us-gaap_CommonStockSharesOutstanding
Number of additional shares of common stock issued		37,674,659
Stock Compensation Charge in Connection with the Reorganization
Equity based compensation expense recognized	$ 112,252,000us-gaap_ShareBasedCompensation	$ 365,280,000us-gaap_ShareBasedCompensation	$ 449,000,000us-gaap_ShareBasedCompensation
Gross proceeds from initial public offering		1,578,573,000
Midstream Credit Facility
Stock Compensation Charge in Connection with the Reorganization
Maximum amount of the Credit Facility	1,000,000,000		1,000,000,000
Profits interests awards
Stock Compensation Charge in Connection with the Reorganization
Equity based compensation expense recognized	83,615,000	364,957,000
Additional stock compensation to be recognized over the remaining service period	37,000,000
Restricted units
Stock Compensation Charge in Connection with the Reorganization
Granted (in shares)				20,000
Phantom Units (PSUs)
Stock Compensation Charge in Connection with the Reorganization
Granted (in shares)				2,361,440
Initial Public Offering
Corporate reorganization and initial public offering
Number of additional shares of common stock issued					37,674,659
Common stock price (in dollars per share)					$ 44.00
Net proceeds from issuance of additional shares of common stock					1,600,000,000
Antero Midstream Partners LP [Member]
Stock Compensation Charge in Connection with the Reorganization
Common Unit, Issued	46,000,000		46,000,000
Limited partner interest per common unit	25.00
Public owned ownership percentage	30.30%
Limited partner ownership interest	69.70%
Gas gathering and compression agreement term	20 years
Gross proceeds from initial public offering	1,200,000,000
Net Proceeds after deducting underwriting discounts and offering expenses	63,000,000
Proceeds from Issuance Initial Public Offering Net	1,100,000,000
Repayments of Debt	843,000,000
Net proceeds for general partnership purposes	250,000,000
Antero Midstream Partners LP [Member] \| Midstream Credit Facility
Stock Compensation Charge in Connection with the Reorganization
Maximum amount of the Credit Facility	1,000,000		1,000,000
Antero Midstream Partners LP [Member] \| Letter of Credit
Stock Compensation Charge in Connection with the Reorganization
Maximum amount of the Credit Facility	$ 150,000,000		$ 150,000,000
Antero Midstream Partners LP [Member] \| Restricted units
Stock Compensation Charge in Connection with the Reorganization
Granted (in shares)	20,000
Antero Resources LLC
Corporate reorganization and initial public offering
Ownership percentage							100.00%
Antero Resources LLC \| Phantom Units (PSUs)
Stock Compensation Charge in Connection with the Reorganization
Granted (in shares)	2,361,440
Antero Investment
Corporate reorganization and initial public offering
Ownership percentage						100.00%