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Cost Classifications (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cost Classifications
Depreciation and amortization not included in cost of product sold	$ 1.2	$ 0.7
Depreciation and amortization not included in direct operating expenses	32.5	30.8
Depreciation and amortization not included in selling, general and administrative expenses	$ 0.5	$ 0.6

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- Details

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X

- Definition

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

+ References

No definition available.

+ Details

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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

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Data Type:	xbrli:monetaryItemType
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X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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