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Share-Based Compensation (Details 3) (USD $)
In Millions, except Share data, unless otherwise specified
9 Months Ended 3 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2014
CVR Partners, LP
CVR Partners Long Term Incentive Plan
trading_day
Apr. 30, 2011
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Sep. 30, 2014
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Phantom Unit and Common Unit
Sep. 30, 2013
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Phantom Unit and Common Unit
Sep. 30, 2014
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Phantom Unit and Common Unit
Sep. 30, 2013
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Phantom Unit and Common Unit
Sep. 30, 2014
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Phantom Unit and Common Unit
Personnel Accruals
Dec. 31, 2013
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Phantom Unit and Common Unit
Personnel Accruals
Sep. 30, 2014
CVR Partners, LP
CVR Partners Long Term Incentive Plan
Performance-Based Phantom Unit
trading_day
Share-Based Compensation                      
Common stock authorized for issuance (in shares)       5,000,000              
Vesting period     3 years                
Vesting rights percentage     33.33%                
Number of share right to receive cash payment on vesting equal to fair market value is received per award     1                
Period for determination of cash payment value     10               10
Unrecognized compensation cost         $ 0.6   $ 0.6       $ 0.3
Weighted-average period for amortization of unrecognized compensation cost             1 year       1 year 3 months
Compensation expense         (0.1) 0.4 0.4 1.6      
Liability for unvested restricted share awards $ 49.5 $ 45.8             $ 0.6 $ 0.2