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DERIVATIVES AND RISK MANAGEMENT (Effective Portion of Derivatives Designated as Cash Flow Hedging Instruments Recognized in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
May 31, 2016
May 31, 2015
May 31, 2016
May 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI $ (16) $ 54 $ 469 $ (2,371)
Commodity        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI (56) (76) (280) (492)
Foreign exchange        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI $ 40 $ 130 $ 749 $ (1,879)