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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Value Added Tax Receivables) (Details) - USD ($)
$ in Thousands
Feb. 28, 2019
Aug. 31, 2018
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]    
Value Added Tax, Prepaid expenses and other current assets $ 5,187 $ 5,921
Value Added Tax, Other non-current assets 20,765 19,224
Total amount of VAT receivables reported $ 25,952 $ 25,145