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Marketable Securities - Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 25, 2021
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Marketable Securities [Abstract] |  |
Equity securities | $ 5,185 | $ 6,509
Available-for-sale securities | 181,234 |
Marketable securities | $ 186,419 | $ 205,744
Equity Securities, FV-NI, Fair Value by Fair Value Hierarchy Level | us-gaap:FairValueInputsLevel1Member | us-gaap:FairValueInputsLevel1Member
Bonds [Member] |  |
Marketable Securities [Abstract] |  |
Available-for-sale securities | $ 181,234 | $ 154,315
Debt Securities, Available-for-Sale, Fair Value by Fair Value Hierarchy Level | us-gaap:FairValueInputsLevel2Member | us-gaap:FairValueInputsLevel2Member
Commercial Paper [Member] |  |
Marketable Securities [Abstract] |  |
Available-for-sale securities |  | $ 44,920
Debt Securities, Available-for-Sale, Fair Value by Fair Value Hierarchy Level |  | us-gaap:FairValueInputsLevel2Member

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