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Intangible Assets And Goodwill (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2020
Apr. 30, 2021
Apr. 26, 2021
Aggregate amortization expense from definite-lived intangible assets $ 5,300 $ 5,000 $ 4,600    
Intangible assets 44,833 50,097      
Goodwill 31,220 $ 31,220      
Strive [Member]          
Intangible assets       $ 8,000  
Goodwill         $ 7,000
Strive [Member] | Direct Office And International Licensee [Member]          
Goodwill $ 7,000