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Share-Based Compensation - Summary of Phantom Unit Activity and Changes Under CVR Partners LTIP (Details) - CVR Partners, LP - CVR Partners Long Term Incentive Plan - Phantom Units
9 Months Ended
Sep. 30, 2017
$ / shares
shares
Phantom Units  
Non-vested at the beginning of the period (in shares) | shares 771,786
Granted (in shares) | shares 3,172
Vested (in shares) | shares (7,333)
Forfeited (in shares) | shares (23,222)
Non-vested at the end of the period (in shares) | shares 744,403
Weighted-Average Grant-Date Fair Value  
Non-vested at the beginning of the period (in dollars per share) | $ / shares $ 6.47
Granted (in dollars per share) | $ / shares 4.73
Vested (in dollars per share) | $ / shares 8.03
Forfeited (in dollars per share) | $ / shares 6.49
Non-vested at the end of the period (in dollars per share) | $ / shares $ 6.45