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Fair Value Measurement (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2020
USD ($)
Sep. 30, 2015
USD ($)
bbl
Dec. 31, 2019
USD ($)
Mar. 12, 2019
Fair value measurement        
Weighted-average cost of capital     10.0  
Level 2 | 5.375% Senior Notes due 2024        
Fair value measurement        
Debt instrument fair value     $ 603,000  
Level 2 | 5.75% Senior Notes Due 2027        
Fair value measurement        
Debt instrument fair value     571,000  
Level 2 | 5.75% Senior Notes Due 2028        
Fair value measurement        
Debt instrument fair value     569,000  
Level 3        
Reconciliation of changes in Level 3 financial liabilities measured at fair value on a recurring basis        
Beginning balance $ 125,000      
Contingent acquisition consideration assumed from Antero Midstream Partners     116,924  
Accretion and change in fair value     8,076  
Ending balance     $ 125,000  
Weighted Average | Recurring Member | Discount rate | Discounted cash flow | Level 3        
Fair value measurement        
Weighted-average cost of capital       14.1
Contribution Agreement | Contingent Consideration Period One        
Fair value measurement        
Contingent consideration   $ 125,000    
Threshold number of barrels of water to trigger contingent consideration payment | bbl   176,295,000    
Payment of contingent consideration $ 125,000      
Contribution Agreement | Contingent Consideration Period Two        
Fair value measurement        
Contingent consideration   $ 125,000    
Threshold number of barrels of water to trigger contingent consideration payment | bbl   219,200,000