Derivatives and Hedging (Detail) - Derivative Gains And Losses That Have Been Recognized In Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Total expense, net		$ 2,269	$ 1,039	$ 3,780	$ 1,928
Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Total expense, net	[1]	2,084	1,022	3,338	2,026
Other expense (income), net
Derivative Instruments, Gain (Loss) [Line Items]
Total expense, net	[2]	$ 185	$ 17	$ 442	$ (98)

[1] Consists of interest expense from interest rate swap contracts.

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