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Marketable Securities - Amortized Cost (Details) - USD ($) $ in Thousands | Sep. 27, 2025 | Dec. 28, 2024
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Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] |  |
Amortized Cost | $ 119,152 | $ 189,930
Gross Unrealized Holding Gains | 2,313 | 2,695
Gross Unrealized Holding Losses | (5,833) | (6,583)
Fair Value | 115,632 |
Corporate and municipal bonds |  |
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] |  |
Amortized Cost | 119,152 | 171,258
Gross Unrealized Holding Gains | 2,313 | 2,525
Gross Unrealized Holding Losses | (5,833) | (6,583)
Fair Value | $ 115,632 | 167,201
Commercial Paper |  |
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] |  |
Amortized Cost |  | 18,671
Gross Unrealized Holding Gains |  | 169
Fair Value |  | $ 18,840

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