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Derivative Financial Instruments and Hedging Activities (Details 2) - Recurring [Member] $ in Thousands | Aug. 31, 2017 USD ($)
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Assets: |
Forward foreign exchange contracts, Assets | $ 39,660
Liabilities: |
Forward foreign exchange contracts, Liabilities | (10,539)
Total | 29,121
Level 2 |
Assets: |
Forward foreign exchange contracts, Assets | 39,660
Liabilities: |
Forward foreign exchange contracts, Liabilities | (10,539)
Total | $ 29,121

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