Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Effective Income Tax Rate Reconciliation, Percent
Expected income tax provision at statutory rate (as a percent)	21.00%	21.00%
State tax, net of federal benefit (as a percent)	5.50%	6.30%
Permanent differences (as a percent)	(0.60%)	(0.70%)
Other, net (as a percent)	(1.20%)	3.20%
Income tax expense (as a percent)	24.70%	29.80%