Supplemental Guarantor Information -Condensed Consolidating Statements of Cash Flows (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	$ 207.1	$ 304.7
Capital expenditures	(20.0)	(15.7)
Net cash used in investing activities	(20.0)	(15.7)
Proceeds from borrowings under revolving credit facility	63.0	256.0
Repayments of borrowings under revolving credit facility	(63.0)	(256.0)
Repayments of long-term debt	(43.4)	(201.0)
Proceeds from Issuance of long-term Debt	1,346.6	135.7
Payments to extinguish long-term debt	(1,352.6)	(136.9)
Net change in accounts payable-inventory financing	33.3	(25.5)
Payment of incentive compensation plan withholding taxes	(23.3)	0
Net cash used in financing activities	(44.3)	(230.1)
Effect of exchange rate changes on cash and cash equivalents	(1.4)	(0.1)
Net increase (decrease) in cash and cash equivalents	141.4	58.8
Cash and cash equivalents - beginning of period	37.9	99.9
Cash and cash equivalents - end of period	179.3	158.7
Parent Guarantor [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	0	0
Capital expenditures	0	0
Net cash used in investing activities	0	0
Proceeds from borrowings under revolving credit facility	0	0
Repayments of borrowings under revolving credit facility	0	0
Repayments of long-term debt	0	0
Proceeds from Issuance of long-term Debt	0	0
Payments to extinguish long-term debt	0	0
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes	0
Advances from (to) affiliates	0	0
Other financing activities	0	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents - beginning of period	0	0
Cash and cash equivalents - end of period	0	0
Subsidiary Issuer [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	(109.5)	(118.3)
Capital expenditures	(18.0)	(8.8)
Net cash used in investing activities	(18.0)	(8.8)
Proceeds from borrowings under revolving credit facility	63.0	256.0
Repayments of borrowings under revolving credit facility	(63.0)	(256.0)
Repayments of long-term debt	(43.4)	(201.0)
Proceeds from Issuance of long-term Debt	1,346.6	135.7
Payments to extinguish long-term debt	(1,352.6)	(136.9)
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes	(3.8)
Advances from (to) affiliates	279.6	371.8
Other financing activities	(4.9)	(2.4)
Net cash used in financing activities	221.5	167.2
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	94.0	40.1
Cash and cash equivalents - beginning of period	48.0	102.1
Cash and cash equivalents - end of period	142.0	142.2
Guarantor Subsidiaries [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	279.1	410.6
Capital expenditures	(2.0)	(6.5)
Net cash used in investing activities	(2.0)	(6.5)
Proceeds from borrowings under revolving credit facility	0	0
Repayments of borrowings under revolving credit facility	0	0
Repayments of long-term debt	0	0
Proceeds from Issuance of long-term Debt	0	0
Payments to extinguish long-term debt	0	0
Net change in accounts payable-inventory financing	33.3	(25.5)
Payment of incentive compensation plan withholding taxes	(19.5)
Advances from (to) affiliates	(279.7)	(372.3)
Other financing activities	0	0
Net cash used in financing activities	(265.9)	(397.8)
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	11.2	6.3
Cash and cash equivalents - beginning of period	0	15.8
Cash and cash equivalents - end of period	11.2	22.1
Non-Guarantor Subsidiaries [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	17.7	13.1
Capital expenditures	0	(0.4)
Net cash used in investing activities	0	(0.4)
Proceeds from borrowings under revolving credit facility	0	0
Repayments of borrowings under revolving credit facility	0	0
Repayments of long-term debt	0	0
Proceeds from Issuance of long-term Debt	0	0
Payments to extinguish long-term debt	0	0
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes	0
Advances from (to) affiliates	0.1	0.5
Other financing activities	0	0
Net cash used in financing activities	0.1	0.5
Effect of exchange rate changes on cash and cash equivalents	(1.4)	(0.1)
Net increase (decrease) in cash and cash equivalents	16.4	13.1
Cash and cash equivalents - beginning of period	9.8	8.1
Cash and cash equivalents - end of period	26.2	21.2
Co-Issuer [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	0	0
Capital expenditures	0	0
Net cash used in investing activities	0	0
Proceeds from borrowings under revolving credit facility	0	0
Repayments of borrowings under revolving credit facility	0	0
Repayments of long-term debt	0	0
Proceeds from Issuance of long-term Debt	0	0
Payments to extinguish long-term debt	0	0
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes	0
Advances from (to) affiliates	0	0
Other financing activities	0	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents - beginning of period	0	0
Cash and cash equivalents - end of period	0	0
Consolidating Adjustments [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	19.8	(0.7)
Capital expenditures	0	0
Net cash used in investing activities	0	0
Proceeds from borrowings under revolving credit facility	0	0
Repayments of borrowings under revolving credit facility	0	0
Repayments of long-term debt	0	0
Proceeds from Issuance of long-term Debt	0	0
Payments to extinguish long-term debt	0	0
Net change in accounts payable-inventory financing	0	0
Payment of incentive compensation plan withholding taxes	0
Advances from (to) affiliates	0	0
Other financing activities	0	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	19.8	(0.7)
Cash and cash equivalents - beginning of period	(19.9)	(26.1)
Cash and cash equivalents - end of period	(0.1)	(26.8)
Consolidated [Member]
Supplemental Guarantor Information [Line Items]
Net cash provided by operating activities	207.1	304.7
Capital expenditures	(20.0)	(15.7)
Net cash used in investing activities	(20.0)	(15.7)
Proceeds from borrowings under revolving credit facility	63.0	256.0
Repayments of borrowings under revolving credit facility	(63.0)	(256.0)
Repayments of long-term debt	(43.4)	(201.0)
Proceeds from Issuance of long-term Debt	1,346.6	135.7
Payments to extinguish long-term debt	(1,352.6)	(136.9)
Net change in accounts payable-inventory financing	33.3	(25.5)
Payment of incentive compensation plan withholding taxes	(23.3)
Advances from (to) affiliates	0	0
Other financing activities	(4.9)	(2.4)
Net cash used in financing activities	(44.3)	(230.1)
Effect of exchange rate changes on cash and cash equivalents	(1.4)	(0.1)
Net increase (decrease) in cash and cash equivalents	141.4	58.8
Cash and cash equivalents - beginning of period	37.9	99.9
Cash and cash equivalents - end of period	$ 179.3	$ 158.7