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Marketable Securities - Schedule of Marketable Securities Classified as Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 26, 2022	Dec. 25, 2021
Marketable Securities [Line Items]
Amortized Cost, Total	$ 1,685,025	$ 1,623,253
Gross Unrealized Gains	1,146	11,979
Gross Unrealized Losses	(72,434)	(18,554)
Fair Value	1,613,737	1,616,678
Agency securities [Member] | Fair Value, Level 2 [Member]
Marketable Securities [Line Items]
Amortized Cost, Total	7,000	7,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(487)	(110)
Fair Value	6,513	6,890
Mortgage-backed securities [Member] | Fair Value, Level 2 [Member]
Marketable Securities [Line Items]
Amortized Cost, Total	170,419	149,692
Gross Unrealized Gains	0	257
Gross Unrealized Losses	(2,264)	(880)
Fair Value	168,155	149,069
Corporate securities [Member] | Fair Value, Level 2 [Member]
Marketable Securities [Line Items]
Amortized Cost, Total	1,124,686	1,079,390
Gross Unrealized Gains	947	9,830
Gross Unrealized Losses	(47,717)	(11,827)
Fair Value	1,077,916	1,077,393
Municipal securities [Member] | Fair Value, Level 2 [Member]
Marketable Securities [Line Items]
Amortized Cost, Total	352,245	356,037
Gross Unrealized Gains	199	1,870
Gross Unrealized Losses	(19,731)	(4,864)
Fair Value	332,713	353,043
Other [Member] | Fair Value, Level 2 [Member]
Marketable Securities [Line Items]
Amortized Cost, Total	30,675	31,134
Gross Unrealized Gains	0	22
Gross Unrealized Losses	(2,235)	(873)
Fair Value	$ 28,440	$ 30,283

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