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Derivative Financial Instruments - Summary of Effect of Foreign Currency Exchange Contracts on Condensed Consolidated Financial Statements (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Derivatives designated as hedges:    
Gains (losses) recognized in accumulated OCI (effective portion) $ (203) $ (151)
Gains (losses) reclassified from accumulated OCI into operating expenses (effective portion) 54 54
Derivatives not designated as hedges:    
Gains (losses) recognized in other income (expense), net $ (48) $ (48)