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Cash and Investments - Investments by Security Type (Details) - USD ($) $ in Thousands | Jun. 28, 2024 | Dec. 29, 2023
--- | --- | ---
Debt securities available-for-sale: |  |
Amortized Cost | $ 1,283,442 | $ 1,501,923
Gross Unrealized Gains | 363 | 2,076
Gross Unrealized Losses | (6,678) | (6,576)
Fair Value | 1,277,127 | 1,497,423
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 1,440,619 | 1,728,519
Gross Unrealized Gains | 363 | 2,076
Gross Unrealized Losses | (6,678) | (6,576)
Fair Value | 1,434,304 | 1,724,019
Commercial paper |  |
Debt securities available-for-sale: |  |
Amortized Cost | 189,302 | 214,016
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 189,302 | 214,016
Corporate bonds |  |
Debt securities available-for-sale: |  |
Amortized Cost | 766,321 | 870,870
Gross Unrealized Gains | 362 | 1,652
Gross Unrealized Losses | (4,593) | (4,277)
Fair Value | 762,090 | 868,245
U.S. Treasury and government-sponsored enterprises |  |
Debt securities available-for-sale: |  |
Amortized Cost | 319,939 | 409,157
Gross Unrealized Gains | 1 | 414
Gross Unrealized Losses | (2,070) | (2,250)
Fair Value | 317,870 | 407,321
Municipal bonds |  |
Debt securities available-for-sale: |  |
Amortized Cost | 7,880 | 7,880
Gross Unrealized Gains | 0 | 10
Gross Unrealized Losses | (15) | (49)
Fair Value | 7,865 | 7,841
Money market funds |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 116,234 | 154,287
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 116,234 | 154,287
Certificates of deposit |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |  |
Amortized Cost | 40,943 | 72,309
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | $ 40,943 | $ 72,309

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