Equity Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Additional disclosures
Equity-based compensation	$ 5,867	$ 6,951	$ 12,078	$ 13,237
Midstream LTIP
Additional disclosures
Number of stock-based compensation awards authorized	10,000,000		10,000,000
Unamortized expense	$ 20,800		$ 20,800
Number of shares available for future grant under the Plan	7,729,437		7,729,437
Weighted average period for recognizing unrecognized stock-based compensation expense			2 years 4 months 24 days
Restricted unit and phantom unit awards
Number of units
Total awarded and unvested at the beginning of the period (in shares)			1,042,963
Granted (in shares)			233,189
Vested (in shares)			(148,554)
Forfeited (in shares)			(54,669)
Total awarded and unvested at the end of the period (in shares)	1,072,929		1,072,929
Weighted average grant date fair value
Total awarded and unvested at the beginning of the period (in dollars per unit)			$ 28.69
Granted (in dollars per unit)			25.35
Vested (in dollars per unit)			27.33
Forfeited (in dollars per unit)			28.87
Total awarded and unvested at the end of the period (in dollars per unit)	$ 28.15		$ 28.15
Aggregate intrinsic value
Total awarded and unvested at the beginning of the period			$ 29,926
Total awarded and unvested at the end of the period	$ 30,199		30,199
Various equity based compensation plans | Antero Resources
Additional disclosures
Unamortized expense	$ 100,000		$ 100,000