Acquisitions and Other Investments - Casa Ley Disposal - Additional Information (Detail) - Casa Ley $ in Millions, $ in Billions	3 Months Ended
Dec. 02, 2017 USD ($)	Dec. 01, 2017 MXN ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash on hand to be paid to CVR holders	$ 11.0
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity interest in equity method investments		49.00%
Amount of consideration to be received or receivable in asset disposal		$ 6.5
Loss on disposal of equity method investment	$ 25.0

Business Combination, Contingent Consideration, Cash Held For Payment Of Liability

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

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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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