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Equity-Based Compensation (Details) - USD ($)
12 Months Ended 27 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2015
Stock-based compensation expense        
Equity based compensation expense recognized $ 97,877,000 $ 112,252,000 $ 365,280,000  
Number of stock-based compensation awards authorized 16,906,500     16,906,500
Number of shares available for future grant under the Plan 9,377,755     9,377,755
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 7,947,771     7,947,771
Profits interests awards        
Stock-based compensation expense        
Equity based compensation expense recognized $ 37,620,000 83,615,000 364,957,000 $ 486,000,000
Additional equity compensation to be recognized over the remaining period 0     0
Restricted stock awards        
Stock-based compensation expense        
Equity based compensation expense recognized 40,663,000 25,624,000 219,000  
Additional equity compensation to be recognized over the remaining period 177,600,000     177,600,000
Stock options        
Stock-based compensation expense        
Equity based compensation expense recognized 2,155,000 501,000 $ 104,000  
Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options 8,300,000     8,300,000
Antero Midstream Partners Phantom and Restricted Unit Awards        
Stock-based compensation expense        
Equity based compensation expense recognized 17,126,000 2,360,000    
Additional equity compensation to be recognized over the remaining period 46,100,000     $ 46,100,000
Common stock issued to directors in lieu of cash compensation        
Stock-based compensation expense        
Equity based compensation expense recognized $ 313,000 $ 152,000