Derivatives and Hedging (Detail) - Derivative Gains And Losses That Have Been Recognized In Condensed Consolidated Statements Of Operations (USD $) In Thousands, 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]
Derivative instruments gain (loss) recognized in income, net	$ 1,022		$ 1,014		$ 2,949		$ 3,119
Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments gain (loss) recognized in income, net	1,034	[1]	1,034	[1]	3,059	[1]	2,981	[1]
Other expense (income), net
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments gain (loss) recognized in income, net	$ (12)	[2]	$ (20)	[2]	$ (110)	[2]	$ 138	[2]

[1] Consists of interest expense from an interest rate swap contract.

[2] Consists of realized and unrealized gains and losses on foreign currency forward contracts.