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Marketable Securities - Schedule of Gross Unrealized Losses and Fair Value by Major Security Type (Details) - USD ($) $ in Thousands | Jun. 29, 2024 | Dec. 30, 2023
--- | --- | ---
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | $ (2,009) | $ (765)
Fair Value Less than 12 Consecutive Months | 286,202 | 78,214
Gross Unrealized Losses 12 Consecutive Months or Longer | (57,926) | (69,477)
Fair Value 12 Consecutive Months or Longer | 1,057,505 | 1,195,231
Gross Unrealized Losses, Total | (59,935) | (70,242)
Fair Value, Total | 1,343,707 | 1,273,445
Agency securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | (33) | (31)
Fair Value Less than 12 Consecutive Months | 6,929 | 10,923
Gross Unrealized Losses 12 Consecutive Months or Longer | (518) | (554)
Fair Value 12 Consecutive Months or Longer | 7,482 | 6,446
Gross Unrealized Losses, Total | (551) | (585)
Fair Value, Total | 14,411 | 17,369
Mortgage-backed securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | 0 | 0
Fair Value Less than 12 Consecutive Months | 0 | 0
Gross Unrealized Losses 12 Consecutive Months or Longer | (4,413) | (4,731)
Fair Value 12 Consecutive Months or Longer | 31,881 | 34,012
Gross Unrealized Losses, Total | (4,413) | (4,731)
Fair Value, Total | 31,881 | 34,012
Corporate debt securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | (1,882) | (702)
Fair Value Less than 12 Consecutive Months | 264,993 | 64,637
Gross Unrealized Losses 12 Consecutive Months or Longer | (37,300) | (45,371)
Fair Value 12 Consecutive Months or Longer | 771,326 | 889,785
Gross Unrealized Losses, Total | (39,182) | (46,073)
Fair Value, Total | 1,036,319 | 954,422
Municipal securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | (94) | (32)
Fair Value Less than 12 Consecutive Months | 14,280 | 2,654
Gross Unrealized Losses 12 Consecutive Months or Longer | (15,535) | (18,398)
Fair Value 12 Consecutive Months or Longer | 243,951 | 261,651
Gross Unrealized Losses, Total | (15,629) | (18,430)
Fair Value, Total | 258,231 | 264,305
Other [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | 0 | 0
Fair Value Less than 12 Consecutive Months | 0 | 0
Gross Unrealized Losses 12 Consecutive Months or Longer | (160) | (423)
Fair Value 12 Consecutive Months or Longer | 2,865 | 3,337
Gross Unrealized Losses, Total | (160) | (423)
Fair Value, Total | $ 2,865 | $ 3,337

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