Components of Changes in Accumulated Other Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 0.2		$ 2.5
Other comprehensive income before reclassifications	(1.9)		(6.0)
Amounts reclassified to consolidated statement of income	0.3	[1]	0.3	[1]
Tax benefit (expense)			0.1
Other comprehensive income (loss)	(1.6)		(5.6)
Ending balance	(1.4)		(3.1)
Foreign Currency Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	12.7		22.8
Other comprehensive income before reclassifications	(1.6)		(6.2)
Amounts reclassified to consolidated statement of income	0	[1]	0	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)	(1.6)		(6.2)
Ending balance	11.1		16.6
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(13.0)		(20.5)
Other comprehensive income before reclassifications	0		0
Amounts reclassified to consolidated statement of income	0	[1]	0.3	[1]
Tax benefit (expense)			0
Other comprehensive income (loss)	0		0.3
Ending balance	(13.0)		(20.2)
Derivative Agreements
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	0.5		0.2
Other comprehensive income before reclassifications	(0.3)		0.2
Amounts reclassified to consolidated statement of income	0.3	[1]	0	[1]
Tax benefit (expense)			0.1
Other comprehensive income (loss)	0		0.3
Ending balance	$ 0.5		$ 0.5

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