Restructuring and Relocation Activities - Components of Restructuring Accrual, Spending and Other Activity and Accrual Balance Remaining (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual at December 31, 2013	$ 55.9
Accrual and accrual adjustments	18.5
Cash payments during 2014	(42.3)
Effect of changes in foreign currency exchange rates	(1.2)
Restructuring accrual at September 30, 2014	30.9
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual at December 31, 2013	24.5
Accrual and accrual adjustments	12.8
Cash payments during 2014	(17.5)
Effect of changes in foreign currency exchange rates	(1.7)
Restructuring accrual at September 30, 2014	$ 18.1