Leases - Additional Information (Detail) $ in Millions	12 Months Ended
Aug. 29, 2020 USD ($)
Renewal Options And Lease term	The leases have varying terms and expire at various dates through 2040. Retail leases typically have initial terms of between one and 20 years, with one to six optional renewal periods of one to five years each.
Lease Accumulated Amortization	$ 107.3
Cash paid for amounts included in the measurement of operating lease liabilities	352.9
Additional leases not yet commenced, undiscounted future payments	$ 16.7
Finance lease term	20 years
Minimum [Member]
Operating lease commencement date	2021
Finance lease term	1 year
Maximum [Member]
Operating lease commencement date	2022
Finance lease term	5 years

Lessee, operating and finance lease, lease not yet commenced, undiscounted future payments.

No definition available.

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- Definition

Operating lease commencement date.

+ References

No definition available.

+ Details

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971

+ Details

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- Definition

Term of lessee's finance lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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- Details

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