v2.4.1.9
Share-Based Compensation (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Share-Based Compensation      
Percentage of allocation of share-based compensation expense 100.00%uan_ShareBasedCompensationExpenseAllocationPercentage    
CVR Energy, Inc | Incentive Unit Award      
Share-Based Compensation      
Vesting period 3 years    
Weighted-average period for amortization of unrecognized compensation cost 1 year 7 months    
Compensation expense 200,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
$ 100,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
 
Number of shares considered for determining cash payment for each award upon vesting 1uan_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesConsideredForDeterminingCashPaymentForEachAwardUponVesting
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Unrecognized compensation cost 1,100,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
CVR Energy, Inc | Incentive Unit Award | Accrued Expenses and Other Current Liabilities      
Share-Based Compensation      
Current deferred compensation liability 400,000us-gaap_DeferredCompensationShareBasedArrangementsLiabilityCurrent
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ us-gaap_BalanceSheetLocationAxis
= uan_AccruedExpensesandOtherCurrentLiabilitiesMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
  200,000us-gaap_DeferredCompensationShareBasedArrangementsLiabilityCurrent
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ us-gaap_BalanceSheetLocationAxis
= uan_AccruedExpensesandOtherCurrentLiabilitiesMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
CVR Energy, Inc | CVR Energy LTIP | Restricted Stock      
Share-Based Compensation      
Vesting period 3 years    
Price at which holders of Shares will receive upon vesting of award (in dollars per share) 30.00uan_PriceAtWhichHoldersOfSharesWillReceiveUponVestingOfAward
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
   
CVR Energy, Inc | CVR Energy LTIP | Restricted stock units      
Share-Based Compensation      
Vesting period 3 years    
Number of shares right to receive cash payment on vesting equal to fair market value is received per award 1uan_ShareBasedCompensationArrangementbyShareBasedPaymentAwardNumberofSharesRighttoReceiveCashPaymentonVestingEqualtoFairMarketValueIsReceivedPerAward
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
   
Unrecognized compensation cost 100,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
   
Weighted-average period for amortization of unrecognized compensation cost 0 years 8 months    
Compensation expense 26,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
16,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
 
CVR Energy, Inc | CVR Energy LTIP | Restricted stock units | Tranche One      
Share-Based Compensation      
Vesting percentage 33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheOneMember
   
CVR Energy, Inc | CVR Energy LTIP | Restricted stock units | Tranche Two      
Share-Based Compensation      
Vesting percentage 33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheTwoMember
   
CVR Energy, Inc | CVR Energy LTIP | Restricted stock units | Tranche Three      
Share-Based Compensation      
Vesting percentage 33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheThreeMember
   
CVR Energy, Inc | CVR Energy LTIP | Performance Shares | Board of Directors Chairman      
Share-Based Compensation      
Compensation expense   400,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_BoardOfDirectorsChairmanMember
 
Current deferred compensation liability     $ 300,000us-gaap_DeferredCompensationShareBasedArrangementsLiabilityCurrent
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_BoardOfDirectorsChairmanMember
CVR Energy, Inc | CVR Energy LTIP | Incentive Unit Award | Tranche One      
Share-Based Compensation      
Vesting percentage 33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheOneMember
   
CVR Energy, Inc | CVR Energy LTIP | Incentive Unit Award | Tranche Two      
Share-Based Compensation      
Vesting percentage 33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheTwoMember
   
CVR Energy, Inc | CVR Energy LTIP | Incentive Unit Award | Tranche Three      
Share-Based Compensation      
Vesting percentage 33.33%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= uan_IncentiveUnitAwardMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_PlanNameAxis
= uan_CVREnergyLongTermIncentivePlanMember
/ us-gaap_VestingAxis
= us-gaap_ShareBasedCompensationAwardTrancheThreeMember