Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended
Nov. 21, 2020	Nov. 23, 2019
Segment Reporting Information [Line Items]
Net sales	$ 3,154,261	$ 2,793,038
Gross profit	1,675,617	1,501,068
Operating, selling, general and administrative expenses	(1,060,392)	(1,001,045)
Interest expense, net	(46,179)	(43,743)
Income before income taxes	569,046	456,280
Auto Parts Locations [Member]
Segment Reporting Information [Line Items]
Net sales	3,101,597	2,743,239
Gross profit	1,639,904	1,466,161
Other [Member]
Segment Reporting Information [Line Items]
Net sales	52,664	49,799
Gross profit	$ 35,713	$ 34,907

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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