Derivatives and Hedging Activities - Effect of Derivative Instruments on Consolidated Statements of Operations (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	$ (0.3)	$ (20.1)
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	2.3	(0.3)
Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Earnings	0.5
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	$ (3.1)	$ (19.8)