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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Income Tax Receivables) (Details) - USD ($)
$ in Thousands
Nov. 30, 2016
Aug. 31, 2016
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]    
Income Taxes Receivable, Prepaid expenses and other current assets $ 6,985 $ 6,402
Income Taxes Receivable, Other non-current assets 11,356 10,376
Total amount of income tax receivable reported $ 18,341 $ 16,778