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Stock-Based Compensation (Total Cost Of Stock-Based Compensation) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 28, 2022
Feb. 28, 2021
Feb. 28, 2022
Feb. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost $ 1,969 $ 1,599 $ 3,618 $ 2,757
Long-Term Incentive Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost 1,375 1,368 2,498 2,314
Strive Acquisition Compensation [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost 366   645  
Restricted Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost 168 175 343 350
Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost $ 60 $ 56 117 $ 93
Fully-Vested Share Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost     $ 15