Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Feb. 13, 2016	Feb. 14, 2015	Feb. 13, 2016	Feb. 14, 2015
Segment Reporting Information [Line Items]
Net sales	$ 2,257,192	$ 2,143,651	$ 4,643,235	$ 4,403,916
Gross profit	1,190,596	1,120,033	2,443,530	2,296,694
Operating, selling, general and administrative expenses	(807,936)	(758,764)	(1,622,875)	(1,526,863)
Interest expense, net	(32,832)	(34,536)	(67,842)	(71,596)
Income before income taxes	349,828	326,733	752,813	698,235
Auto Parts Locations [Member]
Segment Reporting Information [Line Items]
Net sales	2,170,986	2,059,711	4,475,305	4,241,243
Gross profit	1,144,969	1,075,078	2,353,358	2,207,413
Other [Member]
Segment Reporting Information [Line Items]
Net sales	86,206	83,940	167,930	162,673
Gross profit	$ 45,627	$ 44,955	$ 90,172	$ 89,281

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

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51673353&loc=d3e41242-110953

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 10
-Article 5

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- Definition

The net amount of nonoperating interest income (expense).

+ References

No definition available.

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- Definition

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.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=51677171&loc=d3e3636-108311

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