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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Schedule of Notional Amounts of Outstanding Derivative Positions) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Thousands | May 31, 2020 | Aug. 31, 2019
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Derivative [Line Items] |  |
Derivative Liability, Notional Amount | $ 101,363 | $ 77,769
Union Bank [Member] |  |
Derivative [Line Items] |  |
Derivative Liability, Notional Amount | 34,213 | 35,169
Citibank N.A. [Member] |  |
Derivative [Line Items] |  |
Derivative Liability, Notional Amount | 50,650 | 24,225
Scotiabank [Member] |  |
Derivative [Line Items] |  |
Derivative Liability, Notional Amount | $ 16,500 | $ 18,375

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