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Long-Term Debt - Amended and Restated Asset Based (ABL) Credit Facility (Details) - Amended and Restated ABL Credit Facility - Credit parties	Nov. 14, 2017 USD ($)
Debt Instrument [Line Items]
Borrowing capacity	$ 400,000,000.0
Uncommitted incremental facility	200,000,000.0
Letter of Credit
Debt Instrument [Line Items]
Borrowing capacity	60,000,000.0
Swingline Loans
Debt Instrument [Line Items]
Borrowing capacity	$ 40,000,000.0

X

- Definition

The expanded maximum borrowing capacity available, which is subject to additional lender commitments.

+ References

No definition available.

+ Details

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Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
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X

- Details

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Namespace Prefix:
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- Details

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X

- Details

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Namespace Prefix:
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- Details

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