Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Allowance for credit losses / doubtful accounts
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 1,550	$ 1,566	$ 1,593
Charged to Cost and Expense	311	40	0
Deductions	(271)	(56)	(27)
Balance at End of Period	1,590	1,550	1,566
Deferred tax valuation allowance
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	15,342	14,522	16,933
Charged to Cost and Expense	1,873	2,326	482
Deductions	(173)	(1,506)	(2,893)
Balance at End of Period	$ 17,042	$ 15,342	$ 14,522