Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Aug. 27, 2022 USD ($) store class shares	Aug. 28, 2021 USD ($) shares	Aug. 29, 2020 USD ($) shares
Significant Accounting Policies [Line Items]
Number of stores with commercial sales program | store	5,342
Description of reporting periods	The Company’s fiscal year consists of 52 or 53 weeks ending on the last Saturday in August. Fiscal 2022, 2021 and 2020 represented 52 weeks.
Cash and cash equivalents	$ 264,380	$ 1,171,335
Allowances for credit losses	9,500	11,400
Unrecorded adjustment for LIFO value in excess of replacement value		335,300
Inventory LIFO Reserves	15,000
Goodwill	302,645	302,645
Self insurance reserve	$ 264,300	284,000
Renewal options and lease term	The leases have varying terms and expire at various dates through 2046. Retail leases typically have initial terms between one and 20 years, with one to six optional renewal periods of one to five years each.
Measure of income tax benefit for uncertain income tax positions	more than 50%
Advertising expense, net of vendor promotional funds	$ 97,100	85,900	$ 77,600
Vendor promotional funds, which reduced advertising expense	$ 52,100	53,200	$ 39,400
Limited warranty period, minimum period (Days)	30 days
Products accounted for total revenues	one class of similar products accounted for approximately 13 percent of the Company’s total revenues. No other class of similar products accounted for 10 percent or more of total revenues
Products accounted for total purchases	no individual vendor provided more than 10 percent of total purchases
Auto Parts Stores
Significant Accounting Policies [Line Items]
Goodwill	$ 302,600	302,600
Cash Equivalents
Significant Accounting Policies [Line Items]
Maturity period of investments	90 days or less
Settlement term of credit and debit card transaction	less than five days
Credit and debit card receivables included within cash and cash equivalents	$ 78,400	$ 70,500
Product Concentration Risk
Significant Accounting Policies [Line Items]
Number of class of similar products accounted for approximately 13% of the company's total revenues | class	1
Stock Options
Significant Accounting Policies [Line Items]
Anti-dilutive shares excluded from the computation of earnings per share | shares	142,887	171,652	169,460
Minimum [Member] | Building
Significant Accounting Policies [Line Items]
Estimated useful lives	40 years
Minimum [Member] | Building Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives	5 years
Minimum [Member] | Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum [Member] | Vehicles
Significant Accounting Policies [Line Items]
Finance lease term	1 year
Minimum [Member] | Land and Building
Significant Accounting Policies [Line Items]
Finance lease term	20 years
Minimum [Member] | Product Concentration Risk | Sales Revenue, Net
Significant Accounting Policies [Line Items]
Concentration risk percentage	10.00%
Minimum [Member] | Supplier Concentration Risk | Cost of Goods, Total [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	10.00%
Maximum [Member] | Building
Significant Accounting Policies [Line Items]
Estimated useful lives	50 years
Maximum [Member] | Building Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives	15 years
Maximum [Member] | Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives	10 years
Maximum [Member] | Vehicles
Significant Accounting Policies [Line Items]
Finance lease term	5 years
Maximum [Member] | Product Concentration Risk | Sales Revenue, Net
Significant Accounting Policies [Line Items]
Concentration risk percentage	13.00%
Variable Interest Entity Not Primary Beneficiary | Other long-term assets
Significant Accounting Policies [Line Items]
Maximum exposure to losses amount	$ 14,100	$ 11,800
Stores in the United States Including Puerto Rico
Significant Accounting Policies [Line Items]
Number of stores | store	6,168
Brazil
Significant Accounting Policies [Line Items]
Number of stores | store	72
Mexico
Significant Accounting Policies [Line Items]
Number of stores | store	703
Non-US
Significant Accounting Policies [Line Items]
Cash and cash equivalents	$ 86,800	$ 80,400