Schedule II - Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Allowance for doubtful accounts
Valuation allowances and reserves [Roll Forward]
Balance at Beginning of Period	$ 1.0	[1]	$ 1.3	[1]	$ 1.5
Charged to Costs and Expenses	0		1.0
Charged to Other Accounts — Describe	0		0		0
Deductions — Describe	0		1.3	[2]	0.2	[2]
Balance at End of Period	1.0	[1]	1.0	[1]	1.3	[1]
Allowance for discounts, adjustments and returns
Valuation allowances and reserves [Roll Forward]
Balance at Beginning of Period	13.3	[1]	11.1	[1]	11.5
Charged to Costs and Expenses	19.9		15.1		14.9
Charged to Other Accounts — Describe	0.4		0.9		0
Deductions — Describe	18.4	[3]	13.8	[3]	15.3	[3]
Balance at End of Period	$ 15.2	[1]	$ 13.3	[1]	$ 11.1	[1]

[1] (C)Balances which are not required to be presented and those which are immaterial have been omitted.

[2] (A)Write-offs, net of recoveries.

[3] (B)Payments and customer deductions for product returns, discounts and allowances.