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Goodwill And Other Intangible Assets (Summary Of Changes In Carrying Amounts Of Goodwill) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2020
Aug. 31, 2019
Goodwill [Line Items]    
Balance, beginning $ 95,347 $ 95,621
Translation adjustments 384 (274)
Balance, ending 95,731 95,347
Americas [Member]    
Goodwill [Line Items]    
Balance, beginning 85,420 85,449
Translation adjustments 41 (29)
Balance, ending 85,461 85,420
EMEA [Member]    
Goodwill [Line Items]    
Balance, beginning 8,717 8,962
Translation adjustments 343 (245)
Balance, ending 9,060 8,717
Asia-Pacific [Member]    
Goodwill [Line Items]    
Balance, beginning 1,210 1,210
Translation adjustments
Balance, ending $ 1,210 $ 1,210