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Intangible Assets And Goodwill (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Aug. 31, 2021
Apr. 26, 2021
Aggregate amortization expense from definite-lived intangible assets $ 4,300 $ 5,300 $ 5,000  
Intangible assets 40,511 44,833    
Goodwill $ 31,220 $ 31,220    
Strive [Member]        
Goodwill       $ 7,000
Strive [Member] | Direct Office And International Licensee [Member]        
Goodwill     $ 7,000