Quarterly report pursuant to Section 13 or 15(d)

Antero Midstream Partners LP (Details)

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Antero Midstream Partners LP (Details)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Feb. 10, 2017
USD ($)
shares
Sep. 23, 2015
USD ($)
bbl
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Antero Midstream Partners LP              
Investments in unconsolidated affiliates     $ 358,830   $ 358,830   $ 303,302
Equity in earnings of unconsolidated affiliates     9,264 $ 3,623 17,126 $ 5,854  
Consideration:              
Amount borrowed on bank credit facility         485,000 $ 585,000  
Antero Midstream Partners LP              
Antero Midstream Partners LP              
Equity in earnings of unconsolidated affiliates         $ 17,126    
Number of shares of common stock issued (in shares) | shares 6,900,000            
Antero Resources ownership in Antero Midstream         52.90%   52.90%
Equity Transactions              
Proceeds from issuance of common units $ 223,000            
Antero Midstream Partners LP | Contingent Consideration Period One              
Consideration:              
Contingent consideration   $ 125,000          
Threshold number of barrels of water to trigger contingent consideration payment | bbl   176,295,000          
Antero Midstream Partners LP | Contingent Consideration Period Two              
Consideration:              
Contingent consideration   $ 125,000          
Threshold number of barrels of water to trigger contingent consideration payment | bbl   219,200,000          
Antero Midstream Partners LP | At the Market Program              
Equity Transactions              
Remaining capacity under equity distribution agreement     $ 157,300   $ 157,300    
Antero Midstream Partners LP | Maximum | At the Market Program              
Equity Transactions              
Aggregate dollar amount of common units available for issuance and sale under equity distribution agreement         250,000    
MarkWest | Antero Midstream Partners LP              
Antero Midstream Partners LP              
Equity in earnings of unconsolidated affiliates         $ 11,584    
Antero Midstream Partners LP              
Antero Midstream Partners LP              
Antero Resources ownership in Antero Midstream         52.90%