Marketable Securities - Schedule of Gross Unrealized Losses and Fair Value by Major Security Type (Details) - USD ($) $ in Thousands	Mar. 28, 2026	Dec. 27, 2025
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	$ (14,139)	$ (2,077)
Fair Value Less than 12 Consecutive Months	990,939	311,053
Gross Unrealized Losses 12 Consecutive Months or Longer	(5,097)	(6,616)
Fair Value 12 Consecutive Months or Longer	353,177	471,830
Gross Unrealized Losses, Total	(19,236)	(8,693)
Fair Value, Total	1,344,116	782,883
U.S. Treasury securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(122)	(3)
Fair Value Less than 12 Consecutive Months	7,863	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	(122)	(3)
Fair Value, Total	7,863	7,981
Agency securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(994)	(217)
Fair Value Less than 12 Consecutive Months	72,696	54,089
Gross Unrealized Losses 12 Consecutive Months or Longer	(56)	(99)
Fair Value 12 Consecutive Months or Longer	6,944	6,900
Gross Unrealized Losses, Total	(1,050)	(316)
Fair Value, Total	79,640	60,989
Mortgage-backed securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(220)	(193)
Fair Value Less than 12 Consecutive Months	57,073	15,074
Gross Unrealized Losses 12 Consecutive Months or Longer	(1,411)	(1,315)
Fair Value 12 Consecutive Months or Longer	13,673	14,664
Gross Unrealized Losses, Total	(1,631)	(1,508)
Fair Value, Total	70,746	29,738
Corporate debt securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(11,904)	(1,469)
Fair Value Less than 12 Consecutive Months	804,398	222,514
Gross Unrealized Losses 12 Consecutive Months or Longer	(2,374)	(3,155)
Fair Value 12 Consecutive Months or Longer	216,935	301,363
Gross Unrealized Losses, Total	(14,278)	(4,624)
Fair Value, Total	1,021,333	523,877
Municipal securities [Member]
Marketable Securities [Line Items]
Gross Unrealized Losses Less than 12 Consecutive Months	(899)	(193)
Fair Value Less than 12 Consecutive Months	48,909	11,094
Gross Unrealized Losses 12 Consecutive Months or Longer	(1,228)	(2,008)
Fair Value 12 Consecutive Months or Longer	114,573	147,899
Gross Unrealized Losses, Total	(2,127)	(2,201)
Fair Value, Total	163,482	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	(28)	(39)
Fair Value 12 Consecutive Months or Longer	1,052	1,004
Gross Unrealized Losses, Total	(28)	(41)
Fair Value, Total	$ 1,052	$ 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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