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DERIVATIVES AND RISK MANAGEMENT (Derivative Liabilities) (Details) - USD ($)
$ in Thousands
May 31, 2016
Aug. 31, 2015
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) [1] $ 1,483 $ 2,803
Commodity | Designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) 88 129
Commodity | Not designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) 66 537
Foreign exchange | Designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) 342 874
Foreign exchange | Not designated    
Derivatives, Fair Value [Line Items]    
Derivative liabilities (accrued expenses and other payables) $ 987 $ 1,263
[1] Derivative assets and liabilities do not include the hedged items designated as fair value hedges.