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Cash and Investments - Investments by Security Type (Details) - USD ($) $ in Thousands | Dec. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt securities available-for-sale: |  |
Amortized Cost | $ 1,887,060 | $ 1,534,464
Gross Unrealized Gains | 589 | 934
Gross Unrealized Losses | (19,034) | (1,730)
Fair Value | 1,868,615 | 1,533,668
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 2,085,126 | 1,855,704
Gross Unrealized Gains | 589 | 934
Gross Unrealized Losses | (19,034) | (1,730)
Fair Value | 2,066,681 | 1,854,908
Commercial paper |  |
Debt securities available-for-sale: |  |
Amortized Cost | 722,018 | 945,801
Gross Unrealized Gains | 0 | 42
Gross Unrealized Losses | 0 | (2)
Fair Value | 722,018 | 945,841
Corporate bonds |  |
Debt securities available-for-sale: |  |
Amortized Cost | 810,439 | 541,774
Gross Unrealized Gains | 541 | 876
Gross Unrealized Losses | (13,132) | (1,672)
Fair Value | 797,848 | 540,978
U.S. Treasury and government-sponsored enterprises |  |
Debt securities available-for-sale: |  |
Amortized Cost | 338,218 | 33,965
Gross Unrealized Gains | 48 | 1
Gross Unrealized Losses | (5,679) | (21)
Fair Value | 332,587 | 33,945
Municipal bonds |  |
Debt securities available-for-sale: |  |
Amortized Cost | 16,385 | 12,924
Gross Unrealized Gains | 0 | 15
Gross Unrealized Losses | (223) | (35)
Fair Value | 16,162 | 12,904
Cash |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 41 | 135,653
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 41 | 135,653
Money market funds |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 94,344 | 66,531
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 94,344 | 66,531
Certificates of deposit |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 103,681 | 119,056
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | $ 103,681 | $ 119,056

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