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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 | Aug. 31, 2019 | Aug. 31, 2018
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Derivative [Line Items] |  |
Derivative Liability, Notional Amount | $ 77,769 | $ 88,674
Union Bank [Member] |  |
Derivative [Line Items] |  |
Derivative Liability, Notional Amount | 35,169 | 35,700
Citibank N.A. [Member] |  |
Derivative [Line Items] |  |
Derivative Liability, Notional Amount | 24,225 | 27,825
Scotiabank [Member] |  |
Derivative [Line Items] |  |
Derivative Liability, Notional Amount | $ 18,375 | $ 25,149

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