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Income Taxes (Deferred Income Tax Amounts Recorded On The Consolidated Balance Sheets) (Details) - USD ($)
$ in Thousands
Aug. 31, 2020
Aug. 31, 2019
Aug. 31, 2018
Income Taxes [Abstract]      
Long-term assets $ 1,094 $ 5,045 $ 3,222
Long-term liabilities (5,298) (180)  
Net deferred income taxes asset   $ 4,865  
Net deferred income taxes liability $ (4,204)