Benefit Plans - Multiemployer Co-op Retirement Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Co-op Retirement Plan | Pension Benefits
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	$ 1,017	$ 955	$ 1,172