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Nature Of Operations And Summary Of Significant Accounting Policies (Accrued Liabilities) (Details) - USD ($)
$ in Thousands
Aug. 31, 2020
Aug. 31, 2019
Nature Of Operations And Summary Of Significant Accounting Policies [Abstract]    
Accrued compensation $ 9,597 $ 14,003
Other accrued liabilities 13,031 9,552
Accrued liabilities $ 22,628 $ 23,555