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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, 2016
$ / shares
shares
Units  
Non-vested at the beginning of the period (in shares) | shares 391,903
Granted (in shares) | shares 199,455
Vested (in shares) | shares (79,654)
Forfeited (in shares) | shares (8,299)
Non-vested at the end of the period (in shares) | shares 503,405
Weighted-Average Grant-Date Fair Value  
Non-vested at the beginning of the period (in dollars per share) | $ / shares $ 8.71
Granted (in dollars per share) | $ / shares 8.07
Vested (in dollars per share) | $ / shares 8.08
Forfeited (in dollars per share) | $ / shares 8.72
Non-vested at the end of the period (in dollars per share) | $ / shares $ 8.56