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Other Income (Expense), Net (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Other Income and Expenses [Abstract]        
Net gain (loss) on foreign currency exchange contracts [1] $ (218) $ (80) $ (894) $ 787
Net gain (loss) on foreign currency exchange transactions 439 (553) 2,455 (1,229)
Other income (expense) 114 75 165 170
Other income (expense), net $ 335 $ (558) $ 1,726 $ (272)
[1] This represents the gains (losses) incurred on foreign currency hedging derivatives (see Note 18 for further details).