Components of Changes in Accumulated Other Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			$ 2.5
Other comprehensive income before reclassifications			(7.0)
Amounts reclassified to consolidated statement of income			0.2	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)	7.5	6.5	(6.8)		3.8
Ending Balance	(4.3)		(4.3)
Foreign Currency Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			22.8
Other comprehensive income before reclassifications			(7.0)
Amounts reclassified to consolidated statement of income			0	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)			(7.0)
Ending Balance	15.8		15.8
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			(20.5)
Other comprehensive income before reclassifications			0
Amounts reclassified to consolidated statement of income			0.2	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)			0.2
Ending Balance	(20.3)		(20.3)
Derivative Agreements
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			0.2
Other comprehensive income before reclassifications			0
Amounts reclassified to consolidated statement of income			0	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)			0
Ending Balance	$ 0.2		$ 0.2

[1] Amounts classified to cost of sales and selling, general and administrative expenses.