Derivatives - Additional Disclosures (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments,Gain (Loss) [Line Items]
Remaining maturity of foreign currency derivatives (less than)				9 months
Net gain (loss) on foreign currency exchange contracts	[1]	$ (477)	$ (167)	$ (676)	$ 867
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		$ (500)	$ (200)	$ (700)	$ 900

[1] This represents the gains (losses) incurred on foreign currency hedging derivatives (see Note 18 for further details).