Components of Changes in Accumulated Other Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			$ 2.5
Other comprehensive income before reclassifications			(14.6)
Amounts reclassified to consolidated statement of income			0.3	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)	(8.7)	(9.4)	(14.3)		(2.7)
Ending Balance	(11.8)		(11.8)
Foreign Currency Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			22.8
Other comprehensive income before reclassifications			(14.8)
Amounts reclassified to consolidated statement of income			0	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)			(14.8)
Ending Balance	8.0		8.0
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			0.3	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)			0.3
Ending Balance	(20.2)		(20.2)
Derivative Agreements
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance			0.2
Other comprehensive income before reclassifications			0.2
Amounts reclassified to consolidated statement of income			0	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)			0.2
Ending Balance	$ 0.4		$ 0.4

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