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DERIVATIVES (Derivatives Not Designated as Hedging Instruments) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 31, 2020
May 31, 2019
May 31, 2020
May 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) before income taxes for derivatives not designated as hedges $ 575 $ 3,336 $ 1,011 $ (329)
Commodity | Cost of goods sold        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) before income taxes for derivatives not designated as hedges 1,465 3,408 1,881 143
Foreign exchange | SG&A expenses        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) before income taxes for derivatives not designated as hedges $ (890) $ (72) $ (870) $ (472)