Represents the percentage of ownership interest held by the majority shareholder

No definition available.

Name:	cvi_MajorityShareholderOwnershipPercentage
Namespace Prefix:	cvi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of railcars leased.

+ References

No definition available.

+ Details

Name:	cvi_NumberOfRailcarsLeased
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Number of New Railcars Purchased

+ References

No definition available.

+ Details

Name:	cvi_RelatedPartyTransactionNumberofNewRailcarsPurchased
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Number of Trucks Purchased

+ References

No definition available.

+ Details

Name:	cvi_RelatedPartyTransactionNumberofTrucksPurchased
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Number of Used Railcars Purchased

+ References

No definition available.

+ Details

Name:	cvi_RelatedPartyTransactionNumberofUsedRailcarsPurchased
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of payment to related party.

+ References

No definition available.

+ Details

Name:	cvi_RelatedPartyTransactionPayments
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the rent expenses recognized during the period resulting from lease agreement with related party during the period.

+ References

No definition available.

+ Details

Name:	cvi_RelatedPartyTransactionRentExpenses
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cvi_AmericanRailcarIndustriesIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cvi_AmericanRailcarLeasingLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cvi_InsightPortfolioGroupLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cvi_NavistarInternationalCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_MajorityShareholderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions (Details) (USD $)	0 Months Ended	12 Months Ended			51 Months Ended
Related Party Transactions (Details) (USD $)	Jun. 13, 2013	Dec. 31, 2014 railcar	Dec. 31, 2013	Dec. 31, 2012	Jun. 13, 2013 railcar
IEP
Related Party Transactions
Ownership percentage held by controlling stockholder		82.00%
American Railcar Leasing LLC \| CVR Partners, LP
Related Party Transactions
Number of railcars leased					199
Purchase of railcars from ARL	$ 5,000,000
Rent expenses			400,000	1,100,000
Purchase of railcars and trucks		1,100,000
Number of used railcars purchased		12
American Railcar Industries, Inc \| CVR Partners, LP
Related Party Transactions
Number of Railcars Purchased		50
Purchase of railcars and trucks		6,700,000
Expenses from transactions with related parties		50,000
Navistar International Corporation \| CVR Refining, LP
Related Party Transactions
Purchase of railcars and trucks			800,000
Number of trucks purchased			7
Insight Portfolio Group
Related Party Transactions
Payment to related party		$ 400,000	$ 100,000