Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation (Details)

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Equity-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Stock-based compensation expense        
Number of stock-based compensation awards authorized 16,906,500   16,906,500  
Number of shares available for future grant under the Plan 7,656,177   7,656,177  
Equity based compensation expense recognized $ 19,071 $ 26,975 $ 40,227 $ 52,478
Midstream Plan        
Stock-based compensation expense        
Number of stock-based compensation awards authorized 10,000,000   10,000,000  
Number of shares available for future grant under the Plan 7,729,437   7,729,437  
Restricted stock awards        
Stock-based compensation expense        
Equity based compensation expense recognized $ 10,231 18,681 $ 23,675 36,906
Performance share unit awards        
Stock-based compensation expense        
Equity based compensation expense recognized 3,490 2,748 6,001 4,883
Stock options        
Stock-based compensation expense        
Equity based compensation expense recognized 495 616 976 1,236
Antero Midstream Partners Phantom Unit Awards        
Stock-based compensation expense        
Equity based compensation expense recognized 4,341 4,443 8,559 8,486
Equity awards issued to directors        
Stock-based compensation expense        
Equity based compensation expense recognized $ 514 $ 487 $ 1,016 $ 967