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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tax Receivables) (Narrative) (Details) - USD ($)
$ in Thousands
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Tax Receivables [Line Items]      
Value added tax receivable $ 31,610 $ 27,600  
Income taxes receivable 30,363 31,060  
Unknown Country [Member]      
Tax Receivables [Line Items]      
Value added tax receivable 9,700 7,000  
Deferred tax assets, net 3,300 2,800  
Income taxes receivable $ 11,000 $ 10,400 $ 11,000