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Stock-Based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 28, 2024 | Sep. 30, 2023 | Sep. 28, 2024 | Sep. 30, 2023
Stock-based compensation costs |  |  |  |
Share-based payment arrangement, expense | $ 15,903 | $ 5,790 | $ 45,358 | $ 37,167
Income tax benefit | 2,252 | 505 | 6,054 | 4,446
Total | 13,651 | 5,285 | 39,304 | 32,721
Total unrecognized compensation costs related to awards | 110,000 |  | $ 110,000 |
Weighted-average period of recognition of unrecognized compensation costs |  |  | 2 years 2 months 12 days |
Unvested Performance Stock |  |  |  |
Stock-based compensation costs |  |  |  |
Share-based payment arrangement, expense |  | (9,500) |  |
Cost of revenues |  |  |  |
Stock-based compensation costs |  |  |  |
Share-based payment arrangement, expense | 369 | 192 | $ 1,193 | 774
Research and development |  |  |  |
Stock-based compensation costs |  |  |  |
Share-based payment arrangement, expense | 10,255 | 8,598 | 30,194 | 26,903
Selling, general and administrative |  |  |  |
Stock-based compensation costs |  |  |  |
Share-based payment arrangement, expense | $ 5,279 | $ (3,000) | $ 13,971 | $ 9,490

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