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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES |  |
Aggregate amount of forward exchange contracts outstanding | $ 138,100 |
Fair Value of Derivative Instruments |  |
Derivative Assets | 1,379 | $ 1,044
Derivative Liabilities | 1,826 | 2,493
Derivative Contracts Not Designated as Hedging Instruments |  |
Fair Value of Derivative Instruments |  |
Derivative Assets | 1,379 | 1,044
Derivative Liabilities | 1,826 | 2,493
Derivative Contracts Not Designated as Hedging Instruments | Foreign Exchange Contracts | Prepaid and other |  |
Fair Value of Derivative Instruments |  |
Derivative Assets | 1,379 | 1,037
Derivative Contracts Not Designated as Hedging Instruments | Foreign Exchange Contracts | Miscellaneous Other Assets |  |
Fair Value of Derivative Instruments |  |
Derivative Assets |  | 7
Derivative Contracts Not Designated as Hedging Instruments | Foreign Exchange Contracts | Accounts payable and accrued liabilities |  |
Fair Value of Derivative Instruments |  |
Derivative Liabilities | 1,736 | 2,378
Derivative Contracts Not Designated as Hedging Instruments | Foreign Exchange Contracts | Deferred and other non-current liabilities |  |
Fair Value of Derivative Instruments |  |
Derivative Liabilities | $ 90 | $ 115

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