DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Schedule of Notional Amounts of Outstanding Derivative Positions) (Details) - USD ($) $ in Thousands	Feb. 28, 2017	Aug. 31, 2016
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Liability, Notional Amount	$ 93,495	$ 62,446
Scotiabank [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Liability, Notional Amount	29,657	30,188
Union Bank [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Liability, Notional Amount	35,700
Citibank N.A. [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Liability, Notional Amount	$ 28,138	32,258
Citibank N.A. [Member] | Forward Foreign Exchange Contracts [Member] | Fair Value Hedging [Member]
Derivative [Line Items]
Derivative Liability, Notional Amount		$ 3,750