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Marketable Securities - Schedule of Gross Unrealized Losses and Fair Value by Major Security Type (Details) - USD ($) $ in Thousands | Sep. 28, 2024 | Dec. 30, 2023
--- | --- | ---
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | $ (127) | $ (765)
Fair Value Less than 12 Consecutive Months | 37,935 | 78,214
Gross Unrealized Losses 12 Consecutive Months or Longer | (35,622) | (69,477)
Fair Value 12 Consecutive Months or Longer | 964,059 | 1,195,231
Gross Unrealized Losses, Total | (35,749) | (70,242)
Fair Value, Total | 1,001,994 | 1,273,445
Agency securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | 0 | (31)
Fair Value Less than 12 Consecutive Months | 1,000 | 10,923
Gross Unrealized Losses 12 Consecutive Months or Longer | (333) | (554)
Fair Value 12 Consecutive Months or Longer | 6,667 | 6,446
Gross Unrealized Losses, Total | (333) | (585)
Fair Value, Total | 7,667 | 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 | (3,605) | (4,731)
Fair Value 12 Consecutive Months or Longer | 31,305 | 34,012
Gross Unrealized Losses, Total | (3,605) | (4,731)
Fair Value, Total | 31,305 | 34,012
Corporate debt securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | (127) | (702)
Fair Value Less than 12 Consecutive Months | 36,935 | 64,637
Gross Unrealized Losses 12 Consecutive Months or Longer | (21,135) | (45,371)
Fair Value 12 Consecutive Months or Longer | 688,156 | 889,785
Gross Unrealized Losses, Total | (21,262) | (46,073)
Fair Value, Total | 725,091 | 954,422
Municipal securities [Member] |  |
Marketable Securities [Line Items] |  |
Gross Unrealized Losses Less than 12 Consecutive Months | 0 | (32)
Fair Value Less than 12 Consecutive Months | 0 | 2,654
Gross Unrealized Losses 12 Consecutive Months or Longer | (10,435) | (18,398)
Fair Value 12 Consecutive Months or Longer | 235,171 | 261,651
Gross Unrealized Losses, Total | (10,435) | (18,430)
Fair Value, Total | 235,171 | 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 | (114) | (423)
Fair Value 12 Consecutive Months or Longer | 2,760 | 3,337
Gross Unrealized Losses, Total | (114) | (423)
Fair Value, Total | $ 2,760 | $ 3,337

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