Cash And Marketable Securities - Investments by Security Type (Details) - USD ($) $ in Thousands	Sep. 27, 2024	Dec. 29, 2023
Debt securities available-for-sale:
Amortized Cost	$ 1,484,096	$ 1,501,923
Gross Unrealized Gains	6,631	2,076
Gross Unrealized Losses	(1,149)	(6,576)
Fair Value	1,489,578	1,497,423
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	1,707,100	1,728,519
Gross Unrealized Gains	6,631	2,076
Gross Unrealized Losses	(1,149)	(6,576)
Fair Value	1,712,582	1,724,019
Commercial paper
Debt securities available-for-sale:
Amortized Cost	201,849	214,016
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(2)	0
Fair Value	201,847	214,016
Corporate bonds
Debt securities available-for-sale:
Amortized Cost	975,118	870,870
Gross Unrealized Gains	5,667	1,652
Gross Unrealized Losses	(717)	(4,277)
Fair Value	980,068	868,245
U.S. Treasury and government-sponsored enterprises
Debt securities available-for-sale:
Amortized Cost	304,139	409,157
Gross Unrealized Gains	916	414
Gross Unrealized Losses	(430)	(2,250)
Fair Value	304,625	407,321
Municipal bonds
Debt securities available-for-sale:
Amortized Cost	2,990	7,880
Gross Unrealized Gains	48	10
Gross Unrealized Losses	0	(49)
Fair Value	3,038	7,841
Money market funds
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	179,467	154,287
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	179,467	154,287
Certificates of deposit
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	43,537	72,309
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 43,537	$ 72,309

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