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Marketable Securities - (Tables) | 6 Months Ended
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Jun. 28, 2025
Marketable Securities [Abstract] |
Schedule of Marketable Securities by Category | At June 28, 2025 and December 28, 2024, marketable securities are categorized as follows:
|  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
|  | (in thousands) |
June 28, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Government notes and bonds |  | $ | 317,019 |  |  | $ | 461 |  |  | $ | 70 |  |  | $ | 317,410 |
Certificates of deposit |  |  | 104,579 |  |  |  | 45 |  |  |  | 7 |  |  |  | 104,617 |
Commercial paper |  |  | 131,307 |  |  |  | 14 |  |  |  | 34 |  |  |  | 131,287 |
Corporate bonds |  |  | 123,859 |  |  |  | 312 |  |  |  | 19 |  |  |  | 124,152 |
Total marketable securities |  | $ | 676,764 |  |  | $ | 832 |  |  | $ | 130 |  |  | $ | 677,466 |
December 28, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Government notes and bonds |  | $ | 284,763 |  |  | $ | 387 |  |  | $ | 287 |  |  | $ | 284,863 |
Certificates of deposit |  |  | 73,390 |  |  |  | 49 |  |  |  | 18 |  |  |  | 73,421 |
Commercial paper |  |  | 136,496 |  |  |  | 103 |  |  |  | 42 |  |  |  | 136,557 |
Corporate bonds |  |  | 144,331 |  |  |  | 283 |  |  |  | 72 |  |  |  | 144,542 |
Total marketable securities |  | $ | 638,980 |  |  | $ | 822 |  |  | $ | 419 |  |  | $ | 639,383 |
Schedule of Amortized Cost and Estimated Fair Value of Marketable Securities Classified by Maturity Date | The amortized cost and estimated fair value of marketable securities classified by the maturity date listed on the security, regardless of the Condensed Consolidated Balance Sheets classification, are as follows at June 28, 2025 and December 28, 2024:
|  | June 28, 2025 |  |  | December 28, 2024 |
|  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
|  | (in thousands) |
Due within one year |  | $ | 465,829 |  |  | $ | 466,110 |  |  | $ | 432,088 |  |  | $ | 432,616 |
Due after one through five years |  |  | 156,700 |  |  |  | 157,121 |  |  |  | 140,917 |  |  |  | 140,792 |
Due after five through ten years |  |  | 235 |  |  |  | 235 |  |  |  | 235 |  |  |  | 235 |
Due after ten years |  |  | 54,000 |  |  |  | 54,000 |  |  |  | 65,740 |  |  |  | 65,740 |
Total marketable securities |  | $ | 676,764 |  |  | $ | 677,466 |  |  | $ | 638,980 |  |  | $ | 639,383 |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] | The following table summarizes the estimated fair value and gross unrealized holding losses of marketable securities, aggregated by investment instrument and period of time in an unrealized loss position, at June 28, 2025 and December 28, 2024:
|  | In Unrealized Loss Position For Less Than 12 Months |  |  | In Unrealized Loss Position For Greater Than 12 Months |
|  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |
|  | (in thousands) |
June 28, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Government notes and bonds |  | $ | 49,610 |  |  | $ | 70 |  |  | $ | — |  |  | $ | — |
Certificates of deposit |  |  | 25,960 |  |  |  | 7 |  |  |  | — |  |  |  | — |
Commercial paper |  |  | 100,520 |  |  |  | 34 |  |  |  | — |  |  |  | — |
Corporate bonds |  |  | 22,353 |  |  |  | 19 |  |  |  | — |  |  |  | — |
Total |  | $ | 198,443 |  |  | $ | 130 |  |  | $ | — |  |  | $ | — |
December 28, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Government notes and bonds |  | $ | 37,636 |  |  | $ | 287 |  |  | $ | — |  |  | $ | — |
Certificates of deposit |  |  | 8,260 |  |  |  | 18 |  |  |  | — |  |  |  | — |
Commercial paper |  |  | 18,317 |  |  |  | 42 |  |  |  | — |  |  |  | — |
Corporate bonds |  |  | 13,260 |  |  |  | 71 |  |  |  | 3,200 |  |  |  | 1 |
Total |  | $ | 77,473 |  |  | $ | 418 |  |  | $ | 3,200 |  |  | $ | 1 |

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