Carrying Amounts and Fair Values of Certain Assets (Detail) - USD ($) $ in Thousands	Sep. 06, 2020	Dec. 29, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents, carrying amount	$ 276,905	$ 180,459
Restricted cash equivalents, carrying amount	102,763	126,963
Investments in marketable securities, carrying amount	12,043	11,982
Advertising fund cash equivalents, restricted, carrying amount	97,190	67,851
Investments	40,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents, carrying amount	276,905	180,459
Restricted cash equivalents, carrying amount	102,763	126,963
Investments in marketable securities, carrying amount	12,043	11,982
Advertising fund cash equivalents, restricted, fair value	97,190	$ 67,851
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	$ 40,000

Advertising fund cash equivalents restricted.

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Advertising fund cash equivalents restricted fair value disclosure.

+ References

No definition available.

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- Definition

Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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-Name Accounting Standards Codification
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-Section S99
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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

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
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-Paragraph 2
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Amount of investment in marketable security, classified as noncurrent.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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