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DERIVATIVES AND RISK MANAGEMENT (Derivative Liabilities) (Details) - USD ($)
$ in Thousands
Aug. 31, 2015
Aug. 31, 2014
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) [1] $ 2,803 $ 1,503
Commodity | Designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) 129 6
Commodity | Not designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) 537 162
Foreign exchange | Designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) 874 325
Foreign exchange | Not designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) $ 1,263 $ 1,010
[1] * Derivative assets and liabilities do not include the hedged items designated as fair value hedges.