Marketable Securities - Schedule of Gross Unrealized Losses and Fair Value by Major Security Type (Details) - USD ($) $ in Thousands	Sep. 26, 2026	Dec. 27, 2025
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	$ (48,886)	$ (2,077)
Fair Value Less than 12 Consecutive Months	1,691,879	311,053
Gross Unrealized Losses 12 Consecutive Months or Longer	(3,276)	(6,616)
Fair Value 12 Consecutive Months or Longer	195,359	471,830
Gross Unrealized Losses, Total	(52,162)	(8,693)
Fair Value, Total	1,887,238	782,883
U.S. Treasury securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(534)	(3)
Fair Value Less than 12 Consecutive Months	16,770	7,981
Gross Unrealized Losses 12 Consecutive Months or Longer	0	0
Fair Value 12 Consecutive Months or Longer	0	0
Gross Unrealized Losses, Total	(534)	(3)
Fair Value, Total	16,770	7,981
Agency securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(5,099)	(217)
Fair Value Less than 12 Consecutive Months	134,621	54,089
Gross Unrealized Losses 12 Consecutive Months or Longer	0	(99)
Fair Value 12 Consecutive Months or Longer	0	6,900
Gross Unrealized Losses, Total	(5,099)	(316)
Fair Value, Total	134,621	60,989
Mortgage-backed securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(1,324)	(193)
Fair Value Less than 12 Consecutive Months	55,921	15,074
Gross Unrealized Losses 12 Consecutive Months or Longer	(820)	(1,315)
Fair Value 12 Consecutive Months or Longer	7,555	14,664
Gross Unrealized Losses, Total	(2,144)	(1,508)
Fair Value, Total	63,476	29,738
Corporate debt securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(37,017)	(1,469)
Fair Value Less than 12 Consecutive Months	1,322,105	222,514
Gross Unrealized Losses 12 Consecutive Months or Longer	(2,054)	(3,155)
Fair Value 12 Consecutive Months or Longer	149,726	301,363
Gross Unrealized Losses, Total	(39,071)	(4,624)
Fair Value, Total	1,471,831	523,877
Municipal securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(4,912)	(193)
Fair Value Less than 12 Consecutive Months	162,462	11,094
Gross Unrealized Losses 12 Consecutive Months or Longer	(402)	(2,008)
Fair Value 12 Consecutive Months or Longer	38,078	147,899
Gross Unrealized Losses, Total	(5,314)	(2,201)
Fair Value, Total	200,540	158,993
Other [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	0	(2)
Fair Value Less than 12 Consecutive Months	0	301
Gross Unrealized Losses 12 Consecutive Months or Longer	0	(39)
Fair Value 12 Consecutive Months or Longer	0	1,004
Gross Unrealized Losses, Total	0	(41)
Fair Value, Total	$ 0	$ 1,305

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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