Investments - Additional Information (Detail) - USD ($) |
9 Months Ended | |
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Sep. 26, 2026 |
Dec. 27, 2025 |
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| Debt Securities, Available-for-sale [Line Items] | ||
| Investments maximum maturity period | 5 years | |
| Unrealized gain (loss), net of unrealized gains/losses, on the investments in the bond portfolio | $ (3,350,000) | $ (504,000) |
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- Definition Investments maximum maturity period, years No definition available.
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- Definition Amount, before tax, of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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