Revenue - Schedule of Disaggregation of Revenue (Details) - Revenue from Contract with Customer Benchmark	3 Months Ended		6 Months Ended
	Feb. 28, 2026	Mar. 01, 2025	Feb. 28, 2026	Mar. 01, 2025
Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Customer Concentration Risk \| Manufacturing Heavy
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	58.00%	58.00%	58.00%	58.00%
Customer Concentration Risk \| Manufacturing Light
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	9.00%	9.00%	9.00%	9.00%
Customer Concentration Risk \| Public Sector
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	9.00%	9.00%	9.00%	9.00%
Customer Concentration Risk \| Retail/Wholesale
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	7.00%	7.00%	7.00%	7.00%
Customer Concentration Risk \| Commercial Services
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	4.00%	5.00%	4.00%	5.00%
Customer Concentration Risk \| Other
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	13.00%	12.00%	13.00%	12.00%
Customer Concentration Risk \| National Account Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	36.00%	37.00%	36.00%	37.00%
Customer Concentration Risk \| Public Sector Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	9.00%	9.00%	9.00%	9.00%
Customer Concentration Risk \| Core and Other Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	55.00%	54.00%	55.00%	54.00%
Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Geographic Concentration Risk \| United States
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	95.00%	95.00%	95.00%	95.00%
Geographic Concentration Risk \| Mexico
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	2.00%	2.00%	2.00%	2.00%
Geographic Concentration Risk \| Canada
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	2.00%	2.00%	2.00%	2.00%
Geographic Concentration Risk \| North America
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	99.00%	99.00%	99.00%	99.00%
Geographic Concentration Risk \| Other foreign countries
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	1.00%	1.00%	1.00%	1.00%

MSC INDUSTRIAL DIRECT CO INC 10-Q