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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tax Receivables) (Narrative) (Details) - USD ($)
$ in Thousands
Aug. 31, 2018
Aug. 31, 2017
Tax Receivables [Line Items]    
Value added tax receivable $ 25,145 $ 31,554
Income taxes receivable 24,509 16,895
Unknown Country [Member]    
Tax Receivables [Line Items]    
Value added tax receivable 3,100 $ 1,200
Deferred tax assets, net 2,100  
Income taxes receivable $ 7,100