Quarterly report pursuant to Section 13 or 15(d)

Equity Based Compensation (Details)

v3.8.0.1
Equity Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Additional disclosures    
Equity-based compensation $ 6,211 $ 6,286
Midstream LTIP    
Additional disclosures    
Number of stock-based compensation awards authorized 10,000,000  
Unamortized expense $ 20,400  
Number of shares available for future grant under the Plan 7,876,693  
Weighted average period for recognizing unrecognized stock-based compensation expense 1 year 10 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) 9,449  
Vested (in shares) (1,491)  
Forfeited (in shares) (24,990)  
Total awarded and unvested at the end of the period (in shares) 1,025,931  
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) 31.75  
Vested (in dollars per unit) 33.52  
Forfeited (in dollars per unit) 28.96  
Total awarded and unvested at the end of the period (in dollars per unit) $ 28.71  
Aggregate intrinsic value    
Total awarded and unvested at the beginning of the period $ 30,288  
Total awarded and unvested at the end of the period 26,561  
Various equity based compensation plans | Antero Resources    
Additional disclosures    
Unamortized expense $ 88,100