Valuation and Qualifying Accounts (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$ 0.8	$ 1.8	$ 5.5
Additions Charged to Expenses	0.3	(0.7)	(0.6)
Acquired	0	0	0
Deductions Amounts Written Off	(0.3)	(0.2)	(3.0)
Foreign Exchange	0	(0.1)	(0.1)
Ending Balance	0.8	0.8	1.8
Allowance for Cash Discounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	4.9	4.0	4.3
Additions Charged to Expenses	65.2	57.7	52.9
Acquired	0	0.7	0
Deductions Amounts Written Off	(65.1)	(57.4)	(53.3)
Foreign Exchange	0.1	(0.1)	0.1
Ending Balance	5.1	4.9	4.0
Sales Returns and Allowances
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	17.5	10.1	9.7
Additions Charged to Expenses	49.5	51.7	40.1
Acquired	0	0.7	0
Deductions Amounts Written Off	(55.2)	(44.9)	(39.7)
Foreign Exchange	(0.2)	(0.1)	0
Ending Balance	$ 11.6	$ 17.5	$ 10.1