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Cash and Investments - Investments by Security Type (Details) - USD ($) $ in Thousands	Mar. 29, 2024	Dec. 29, 2023
Debt securities available-for-sale:
Amortized Cost	$ 1,403,780	$ 1,501,923
Gross Unrealized Gains	733	2,076
Gross Unrealized Losses	(7,120)	(6,576)
Fair Value	1,397,393	1,497,423
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	1,599,204	1,728,519
Gross Unrealized Gains	733	2,076
Gross Unrealized Losses	(7,120)	(6,576)
Fair Value	1,592,817	1,724,019
Commercial paper
Debt securities available-for-sale:
Amortized Cost	203,117	214,016
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	203,117	214,016
Corporate bonds
Debt securities available-for-sale:
Amortized Cost	808,010	870,870
Gross Unrealized Gains	670	1,652
Gross Unrealized Losses	(4,712)	(4,277)
Fair Value	803,968	868,245
U.S. Treasury and government-sponsored enterprises
Debt securities available-for-sale:
Amortized Cost	384,773	409,157
Gross Unrealized Gains	63	414
Gross Unrealized Losses	(2,376)	(2,250)
Fair Value	382,460	407,321
Municipal bonds
Debt securities available-for-sale:
Amortized Cost	7,880	7,880
Gross Unrealized Gains	0	10
Gross Unrealized Losses	(32)	(49)
Fair Value	7,848	7,841
Cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	19
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Value	19
Money market funds
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	133,132	154,287
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	133,132	154,287
Certificates of deposit
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	62,273	72,309
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 62,273	$ 72,309

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