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Other Income (Expense), Net (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Other Income and Expenses [Abstract]        
Net gain (loss) on foreign currency exchange contracts [1] $ (477) $ (167) $ (676) $ 867
Net gain (loss) on foreign currency exchange transactions 1,105 178 2,016 (676)
Other income (expense) 43 45 51 95
Other income (expense), net $ 671 $ 56 $ 1,391 $ 286
[1] This represents the gains (losses) incurred on foreign currency hedging derivatives (see Note 18 for further details).