Gain (Losses) Reclassified from "Accumulated Other Comprehensive Income (Loss)" (Detail) (Derivatives designated as cash flow hedging instruments, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in other comprehensive income (loss), Effective portion, Net, Total	$ 283	$ 246	$ (283)
Gain (loss) reclassified from accumulated OCI into income, Effective portion, Net, Total	(515)	195	(183)
Foreign exchange option contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in other comprehensive income (loss), Effective portion, Net, Total	108	177	(102)
Gain (loss) reclassified from accumulated OCI into income, Effective portion, Net, Total	(266)	124	(192)
Foreign exchange forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in other comprehensive income (loss), Effective portion, Net, Total	175	69	(181)
Gain (loss) reclassified from accumulated OCI into income, Effective portion, Net, Total	$ (249)	$ 71	$ 9