XML 47 R35.htm IDEA: XBRL DOCUMENT v3.7.0.1
Equity Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Additional disclosures        
Equity-based compensation $ 6,951 $ 6,793 $ 13,237 $ 12,766
Midstream LTIP        
Additional disclosures        
Number of stock-based compensation awards authorized 10,000,000   10,000,000  
Unamortized expense $ 34,500   $ 34,500  
Number of shares available for future grant under the Plan 7,667,042   7,667,042  
Weighted average period for recognizing unrecognized stock-based compensation expense     2 years 3 months 18 days  
Restricted unit and phantom unit awards        
Number of units        
Total awarded and unvested at the beginning of the period (in shares)     1,331,961  
Granted (in shares)     340,773  
Vested (in shares)     (73,080)  
Forfeited (in shares)     (48,760)  
Total awarded and unvested at the end of the period (in shares) 1,550,894   1,550,894  
Weighted average grant date fair value        
Total awarded and unvested at the beginning of the period (in dollars per unit)     $ 27.31  
Granted (in dollars per unit)     32.45  
Vested (in dollars per unit)     21.34  
Forfeited (in dollars per unit)     28.85  
Total awarded and unvested at the end of the period (in dollars per unit) $ 28.68   $ 28.68  
Aggregate intrinsic value        
Total awarded and unvested at the beginning of the period     $ 41,131  
Total awarded and unvested at the end of the period $ 51,459   51,459  
Various equity based compensation plans | Antero Resources        
Additional disclosures        
Unamortized expense $ 168,200   $ 168,200