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Cost Classifications (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Cost Classifications
Depreciation and amortization not included in cost of product sold	$ 1.0	$ 0.6	$ 2.6	$ 1.9
Depreciation and amortization not included in direct operating expenses	31.6	21.0	93.1	62.8
Depreciation and amortization not included in selling, general and administrative expenses	$ 0.5	$ 0.4	$ 1.7	$ 1.4

X

- Definition

Represents the amount of depreciation and amortization not included in cost of product sold.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the amount of depreciation and amortization not included in direct operating expenses.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the amount of depreciation and amortization not included in selling, general and administrative expenses.

+ References

No definition available.

+ Details

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

X

- Details

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