Stock-Based Compensation (Total Cost Of Stock-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 2,828	$ 3,307	$ 7,092	$ 9,357
Long-Term Incentive Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	2,355	2,871	5,707	8,074
Strive Acquisition Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	165	190	550	556
Unvested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	240	180	640	520
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 68	$ 66	$ 195	$ 207