Goodwill and Intangibles - Schedule of Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
Aug. 29, 2015	Aug. 30, 2014
Goodwill [Line Items]
Goodwill, Beginning balance	$ 367,829	$ 367,829
Goodwill added through acquisition	24,058
Goodwill adjustments	0	0
Goodwill, Ending balance	391,887	367,829
Auto Parts Locations [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	302,645	302,645
Goodwill added through acquisition	24,058
Goodwill adjustments	0	0
Goodwill, Ending balance	326,703	302,645
Other [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	65,184	65,184
Goodwill adjustments	0	0
Goodwill, Ending balance	$ 65,184	$ 65,184

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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