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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Nonhedging Designation (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Derivatives not designated as hedging instruments | Foreign currency exchange contracts | Interest and other income, net |  |
Net gain (losses) on derivative instruments |  |
Amount of gain (loss) recognized in income on derivatives | $ (5,028) | $ 317

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