Significant Accounting Policies - Concentrations (Details) - Sales revenue, net	12 Months Ended
	Aug. 31, 2022	Aug. 31, 2021
Geographic regions
Concentrations
Percentage of net revenue	100.00%	100.00%
U.S. | Geographic regions
Concentrations
Percentage of net revenue	88.20%	89.40%
U.S. | Customer concentration risk
Concentrations
Percentage of net revenue	13.00%	13.00%
Asia | Geographic regions
Concentrations
Percentage of net revenue	5.70%	5.10%
Canada | Geographic regions
Concentrations
Percentage of net revenue	3.20%	3.20%
Other | Geographic regions
Concentrations
Percentage of net revenue	2.90%	2.30%
Non-US | Customer concentration risk
Concentrations
Percentage of net revenue	12.00%	11.00%