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Nature Of Operations And Summary Of Significant Accounting Policies (Accrued Liabilities) (Details) - USD ($)
$ in Thousands
Aug. 31, 2019
Aug. 31, 2018
Nature Of Operations And Summary Of Significant Accounting Policies [Abstract]    
Accrued compensation $ 14,003 $ 11,858
Other accrued liabilities 9,552 8,903
Accrued liabilities $ 23,555 $ 20,761