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Summary of Significant Accounting Policies - Principles of Consolidation (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Basis of Presentation      
Other comprehensive income (loss) $ 0 $ 0  
Antero Midstream Partners LP      
Basis of Presentation      
Antero Resources ownership in Antero Midstream 58.40%   60.90%
Term of contract with Antero Midstream 20 years