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Cash and Investments (Tables) | 12 Months Ended
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Dec. 29, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Investments by Security Type | Cash, cash equivalents and investments consisted of the following (in thousands):
| December 31, 2023
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Debt securities available-for-sale: |  |  |  |  |  |  |
Commercial paper | $ | 214,016 |  |  | $ | — |  |  | $ | — |  |  | $ | 214,016 |
Corporate bonds | 870,870 |  |  | 1,652 |  |  | (4,277) |  |  | 868,245 |
U.S. Treasury and government-sponsored enterprises | 409,157 |  |  | 414 |  |  | (2,250) |  |  | 407,321 |
Municipal bonds | 7,880 |  |  | 10 |  |  | (49) |  |  | 7,841 |
Total debt securities available-for-sale | 1,501,923 |  |  | 2,076 |  |  | (6,576) |  |  | 1,497,423 |
Money market funds | 154,287 |  |  | — |  |  | — |  |  | 154,287 |
Certificates of deposit | 72,309 |  |  | — |  |  | — |  |  | 72,309 |
Total cash, cash equivalents and investments | $ | 1,728,519 |  |  | $ | 2,076 |  |  | $ | (6,576) |  |  | $ | 1,724,019 |
| December 31, 2022
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Debt securities available-for-sale: |  |  |  |  |  |  |
Commercial paper | $ | 722,018 |  |  | $ | — |  |  | $ | — |  |  | $ | 722,018 |
Corporate bonds | 810,439 |  |  | 541 |  |  | (13,132) |  |  | 797,848 |
U.S. Treasury and government-sponsored enterprises | 338,218 |  |  | 48 |  |  | (5,679) |  |  | 332,587 |
Municipal bonds | 16,385 |  |  | — |  |  | (223) |  |  | 16,162 |
Total debt securities available-for-sale | 1,887,060 |  |  | 589 |  |  | (19,034) |  |  | 1,868,615 |
Cash | 41 |  |  | — |  |  | — |  |  | 41 |
Money market funds | 94,344 |  |  | — |  |  | — |  |  | 94,344 |
Certificates of deposit | 103,681 |  |  | — |  |  | — |  |  | 103,681 |
Total cash, cash equivalents and investments | $ | 2,085,126 |  |  | $ | 589 |  |  | $ | (19,034) |  |  | $ | 2,066,681 |
Schedule of Fair Value and Gross Unrealized Losses of Investments Available-for-Sale in an Unrealized Loss Position | The fair value and gross unrealized losses on debt securities available-for-sale in an unrealized loss position were as follows (in thousands):
| December 31, 2023
| In an Unrealized Loss Position Less than 12 Months |  | In an Unrealized Loss Position 12 Months or Greater |  | Total
| Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
Corporate bonds | $ | 255,958 |  |  | $ | (847) |  |  | $ | 281,837 |  |  | $ | (3,430) |  |  | $ | 537,795 |  |  | $ | (4,277) |
U.S. Treasury and government-sponsored enterprises | 163,339 |  |  | (406) |  |  | 155,452 |  |  | (1,844) |  |  | 318,791 |  |  | (2,250) |
Municipal bonds | — |  |  | — |  |  | 5,951 |  |  | (49) |  |  | 5,951 |  |  | (49) |
Total | $ | 419,297 |  |  | $ | (1,253) |  |  | $ | 443,240 |  |  | $ | (5,323) |  |  | $ | 862,537 |  |  | $ | (6,576) |
| December 31, 2022
| In an Unrealized Loss Position Less than 12 Months |  | In an Unrealized Loss Position 12 Months or Greater |  | Total
| Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
Corporate bonds | $ | 485,685 |  |  | $ | (7,261) |  |  | $ | 221,026 |  |  | $ | (5,871) |  |  | $ | 706,711 |  |  | $ | (13,132) |
U.S. Treasury and government-sponsored enterprises | 298,414 |  |  | (5,575) |  |  | 9,893 |  |  | (104) |  |  | 308,307 |  |  | (5,679) |
Municipal bonds | 9,091 |  |  | (134) |  |  | 6,701 |  |  | (89) |  |  | 15,792 |  |  | (223) |
Total | $ | 793,190 |  |  | $ | (12,970) |  |  | $ | 237,620 |  |  | $ | (6,064) |  |  | $ | 1,030,810 |  |  | $ | (19,034) |
Schedule of Fair Value of Cash Equivalents and Investments by Contractual Maturity | The fair values of debt securities available-for-sale by contractual maturity were as follows (in thousands):
| December 31,
| 2023 |  | 2022
Maturing in one year or less | $ | 768,706 |  |  | $ | 1,114,884 |
Maturing after one year through five years | 728,717 |  |  | 753,731 |
Total debt securities available-for-sale | $ | 1,497,423 |  |  | $ | 1,868,615 |

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