Stock-Based Compensation (Total Cost Of Stock-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 1,649	$ 1,158
Long-Term Incentive Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	1,123	946
Strive Acquisition Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	279
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	175	175
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	57	$ 37
Fully-Vested Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 15