Fair Value Measurements - Carrying Amounts and Fair Values of Certain Assets (Detail) - USD ($) $ in Thousands	Jun. 14, 2026	Dec. 28, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents, carrying amount	$ 39,784	$ 54,306
Restricted cash equivalents, carrying amount	116,716	146,517
Investments in marketable securities, carrying amount	27,638	24,971
Advertising fund cash equivalents, restricted, carrying amount	72,915	65,604
Investment in DPC Dash	17,714	36,070
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents, carrying amount	39,784	54,306
Restricted cash equivalents, carrying amount	116,716	146,517
Investments in marketable securities, carrying amount	27,638	24,971
Advertising fund cash equivalents, restricted, carrying amount	72,915	65,604
Investment in DPC Dash	17,714	36,070
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents, carrying amount	0	0
Restricted cash equivalents, carrying amount	0	0
Investments in marketable securities, carrying amount	0	0
Advertising fund cash equivalents, restricted, carrying amount	0	0
Investment in DPC Dash	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents, carrying amount	0	0
Restricted cash equivalents, carrying amount	0	0
Investments in marketable securities, carrying amount	0	0
Advertising fund cash equivalents, restricted, carrying amount	0	0
Investment in DPC Dash	$ 0	$ 0

Advertising fund cash equivalents restricted.

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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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- 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.

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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.

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- Definition

Amount of investment in marketable security, classified as noncurrent.

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- Definition

Amount of cash and cash equivalent restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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