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Cash and Investments - Investments by Security Type (Details) - USD ($) $ in Thousands	Jul. 01, 2022	Dec. 31, 2021
Debt securities available-for-sale:
Amortized Cost	$ 1,721,693	$ 1,534,464
Gross Unrealized Gains	175	934
Gross Unrealized Losses	(11,425)	(1,730)
Fair Value	1,710,443	1,533,668
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	2,020,763	1,855,704
Gross Unrealized Gains	175	934
Gross Unrealized Losses	(11,425)	(1,730)
Fair Value	2,009,513	1,854,908
Commercial paper
Debt securities available-for-sale:
Amortized Cost	880,593	945,801
Gross Unrealized Gains	0	42
Gross Unrealized Losses	(107)	(2)
Fair Value	880,486	945,841
Corporate bonds
Debt securities available-for-sale:
Amortized Cost	573,343	541,774
Gross Unrealized Gains	117	876
Gross Unrealized Losses	(9,059)	(1,672)
Fair Value	564,401	540,978
U.S. Treasury and government-sponsored enterprises
Debt securities available-for-sale:
Amortized Cost	255,407	33,965
Gross Unrealized Gains	58	1
Gross Unrealized Losses	(2,057)	(21)
Fair Value	253,408	33,945
Municipal bonds
Debt securities available-for-sale:
Amortized Cost	12,350	12,924
Gross Unrealized Gains	0	15
Gross Unrealized Losses	(202)	(35)
Fair Value	12,148	12,904
Cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	80,747	135,653
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	80,747	135,653
Money market funds
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	87,821	66,531
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	87,821	66,531
Certificates of deposit
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Amortized Cost	130,502	119,056
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 130,502	$ 119,056

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