Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended
Nov. 18, 2017	Nov. 19, 2016
Segment Reporting Information [Line Items]
Net sales	$ 2,589,131	$ 2,467,845
Gross profit	1,365,848	1,301,542
Operating, selling, general and administrative expenses	(897,094)	(842,640)
Interest expense, net	(38,889)	(33,306)
Income before income taxes	429,865	425,596
Auto Parts Locations [Member]
Segment Reporting Information [Line Items]
Net sales	2,510,128	2,389,561
Gross profit	1,322,444	1,257,767
Other [Member]
Segment Reporting Information [Line Items]
Net sales	79,003	78,284
Gross profit	$ 43,404	$ 43,775

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

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-Section S99
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The net amount of nonoperating interest income (expense).

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 225
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