Derivatives and Hedging Activities - Effect of Derivative Instruments on Condensed Consolidated Statements of Operations (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	$ (9.0)	$ 12.6	$ (11.7)	$ (3.4)
Designated as Hedging Instruments [Member] | Foreign Currency Forward Contracts [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	(1.7)	1.5	(0.5)	1.7
Designated as Hedging Instruments [Member] | Interest Rate and Currency Swap [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	0.5		1.5
Designated as Hedging Instruments [Member] | Interest Rate And Currency Swaps [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	(0.8)		(0.8)
Not Designated as Hedging Instruments [Member] | Foreign Currency Forward Contracts [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	$ (7.0)	$ 11.1	$ (11.9)	$ (5.1)