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Intangible Assets And Goodwill (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Apr. 30, 2021
Apr. 26, 2021
Aggregate amortization expense from definite-lived intangible assets   $ 5,000 $ 4,600 $ 5,000    
Intangible assets $ 47,125 50,097 47,125      
Goodwill 24,220 31,220 $ 24,220      
Multipliers License Rights [Member]            
Royalty payments $ 600          
License expiration date Aug. 31, 2029          
Increase to intangible assets $ 4,000          
Percentage of minimum required royalty payments discounted 5.00%          
Strive [Member]            
Intangible assets         $ 8,000  
Goodwill   7,000       $ 7,000
Strive [Member] | Direct Office And International Licensee [Member]            
Goodwill   $ 7,000