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Commitments and Contingencies (Details 2) (CRRM, New Vitol Agreement) | 12 Months Ended
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Dec. 31, 2014
CRRM | New Vitol Agreement |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Renewal term of agreement | 1 year
Number of days for prior notice of nonrenewal | 180 days

X
- Definition Represents the number of days for prior notice from expiration of the initial term or any renewal term for nonrenewal of agreement. + References No definition available. + Details
Name: | cvi_NonrenewalPriorNoticeTerm
Namespace Prefix: | cvi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period of successive automatic renewal term for agreement. + References No definition available. + Details
Name: | cvi_RenewalTermOfAgreement
Namespace Prefix: | cvi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration