Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended
	Nov. 20, 2021	Nov. 21, 2020
Segment Reporting Information [Line Items]
Net sales	$ 3,668,904	$ 3,154,261
Gross profit	1,925,160	1,675,617
Operating, selling, general and administrative expenses	(1,170,675)	(1,060,392)
Interest expense, net	(43,284)	(46,179)
Income before income taxes	711,201	569,046
Auto Parts Stores
Segment Reporting Information [Line Items]
Net sales	3,605,508	3,101,597
Gross profit	1,887,453	1,639,904
Other
Segment Reporting Information [Line Items]
Net sales	63,396	52,664
Gross profit	$ 37,707	$ 35,713