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Derivative Financial Instruments and Hedging Activities (Details 2) - Recurring [Member] $ in Thousands | Nov. 30, 2017 USD ($)
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Assets: |
Forward foreign exchange contracts, Assets | $ 18,731
Liabilities: |
Forward foreign exchange contracts, Liabilities | (9,640)
Total | 9,091
Level 2 |
Assets: |
Forward foreign exchange contracts, Assets | 18,731
Liabilities: |
Forward foreign exchange contracts, Liabilities | (9,640)
Total | $ 9,091

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