Derivatives and Hedging Activities - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Derivatives designated as cash flow hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income, net	$ 1	$ 100
Derivatives designated as cash flow hedging instruments | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional principal amount of Hedging Contracts	2,340		720
Derivatives not qualified as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income, net	$ 0	$ 66	$ 0