Cost Classifications (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Costs and Expenses [Abstract]
Depreciation and amortization not included in cost of product sold	$ 1.6	$ 1.5	$ 5.0	$ 5.1
Depreciation and amortization not included in direct operating expenses	46.5	35.4	129.5	112.7
Depreciation and amortization not included in selling, general and administrative expenses	$ 2.0	$ 1.8	$ 6.3	$ 5.4

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

No definition available.

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