DERIVATIVES AND RISK MANAGEMENT (Derivative Liabilities) (Details) - USD ($) $ in Thousands		Aug. 31, 2016	Aug. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative liabilities (accrued expenses and other payables)	[1]	$ 2,185	$ 2,803
Commodity | Designated
Derivatives, Fair Value [Line Items]
Derivative liabilities (accrued expenses and other payables)		5	129
Commodity | Not designated
Derivatives, Fair Value [Line Items]
Derivative liabilities (accrued expenses and other payables)		117	537
Foreign exchange | Designated
Derivatives, Fair Value [Line Items]
Derivative liabilities (accrued expenses and other payables)		902	874
Foreign exchange | Not designated
Derivatives, Fair Value [Line Items]
Derivative liabilities (accrued expenses and other payables)		$ 1,161	$ 1,263

[1] * Derivative assets and liabilities do not include the hedged items designated as fair value hedges.