Derivatives (Details) - 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]
Maximum Remaining Maturity of Foreign Currency Derivatives				9 months
Net gain (loss) on foreign currency exchange contracts	[1]	$ (167)	$ (216)	$ 867	$ (1,265)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] | Other Income (Expense), Net [Member]
Derivative Instruments,Gain (Loss) [Line Items]
Net gain (loss) on foreign currency exchange contracts		$ (167)	$ (216)	$ 867	$ (1,265)

[1] This represents the gains and (losses) incurred on foreign currency hedging derivatives (see Note 16 for further details).