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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Value Added Tax Receivables) (Details) - USD ($)
$ in Thousands
Aug. 31, 2018
Aug. 31, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]    
Value Added Tax, Prepaid expenses and other current assets $ 5,921 $ 6,650
Value Added Tax, Other non-current assets 19,224 24,904
Total amount of VAT receivables reported $ 25,145 $ 31,554