Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended
Nov. 17, 2018	Nov. 18, 2017
Segment Reporting Information [Line Items]
Net sales	$ 2,641,733	$ 2,589,131
Gross profit	1,417,474	1,365,848
Operating, selling, general and administrative expenses	(929,656)	(897,094)
Interest expense, net	(39,006)	(38,889)
Income before income taxes	448,812	429,865
Auto Parts Locations [Member]
Segment Reporting Information [Line Items]
Net sales	2,593,440	2,510,128
Gross profit	1,383,564	1,322,444
Other [Member]
Segment Reporting Information [Line Items]
Net sales	48,293	79,003
Gross profit	$ 33,910	$ 43,404

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

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