Derivatives (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 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]	$ (80)	$ 353	$ 787	$ (912)
Other Income (Expense), Net [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Derivative Instruments,Gain (Loss) [Line Items]
Net gain (loss) on foreign currency exchange contracts		$ (80)	$ 353	$ 787	$ (912)

[1] This represents the gains and (losses) incurred on foreign currency hedging derivatives (see Note 17 for further details).