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Share-Based Compensation - Summary of Phantom Unit Activity (Details) - CVR Refining Long Term Incentive Plan - Phantom Unit Plan - CVR Refining, LP - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Non-vested shares activity        
Non-vested at the beginning of the period (in shares)   904,855 511,591 403,947
Granted (in shares)   550,172 644,148 302,319
Vested (in shares)   (349,921) (218,351) (136,531)
Forfeited (in shares)   (118,626) (32,533) (58,144)
Non-vested at the end of the period (in shares) 403,947 986,480 904,855 511,591
Weighted-Average Grant-Date Fair Value        
Non-vested at the beginning of the period (in dollars per share)   $ 12.38 $ 19.68 $ 18.89
Granted (in dollars per share)   12.66 9.43 20.40
Vested (in dollars per share)   13.42 19.78 19.26
Forfeited (in dollars per share)   13.52 19.13 18.87
Non-vested at the end of the period (in dollars per share) $ 18.89 $ 12.03 $ 12.38 $ 19.68
Aggregate Intrinsic Value $ 6.8 $ 16.3 $ 9.4 $ 9.7