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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 28, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Additional Information Regarding Stock Based Compensation | Certain information regarding our stock-based compensation was as follows (in thousands, except per share amounts):
| Fiscal Year Ended
| December 28, 2024 |  | December 30, 2023 |  | December 31, 2022
Weighted average grant date per share fair value of RSUs granted | $ | 44.13 |  |  | $ | 33.85 |  |  | $ | 34.83 |
Fair value of RSUs vested | 53,990 |  |  | 32,820 |  |  | 42,324 |
Schedule of Stock-based Compensation Expense | Pre-tax stock-based compensation expense by financial statement line and related tax benefit in the Consolidated Statements of Income are as follows (in thousands):
| Fiscal Year Ended
| December 28, 2024 |  | December 30, 2023 |  | December 31, 2022
Stock-based compensation expense included in: |  |  |  |  |
Cost of revenues | $ | 7,738 |  |  | $ | 6,854 |  |  | $ | 3,807 |
Research and development | 10,721 |  |  | 10,652 |  |  | 8,217 |
Selling, general and administrative | 21,304 |  |  | 21,110 |  |  | 19,313 |
Total stock-based compensation | $ | 39,763 |  |  | $ | 38,616 |  |  | $ | 31,337 |
Stock-based compensation tax benefit (expense) | $ | 2,833 |  |  | $ | (1,424) |  |  | $ | 2,772 |
Schedule of Unrecognized Compensation Expense | Unrecognized stock-based compensation expense at December 28, 2024 consisted of the following (in thousands):
|  | Unrecognized Expense |  | Weighted Average Recognition Period (Years)
Restricted stock units |  | $ | 43,768 |  |  | 1.9
Performance restricted stock units |  | 9,357 |  |  | 1.9
Employee stock purchase plan |  | 474 |  |  | 0.1
Total unrecognized stock-based compensation expense |  | $ | 53,599 |  |  | 1.9
Schedule of Assumptions, Fair Value of PRSUs | The following assumptions were used in estimating the fair value of PRSUs:
| Fiscal Year Ended
| December 28, 2024 |  | December 30, 2023 |  | December 31, 2022
PRSUs: |  |  |  |  |
Dividend yield | — | % |  | — | % |  | — | %
Expected volatility | 50.8 | % |  | 50.7 | % |  | 53.0 | %
Risk-free interest rate | 3.7 | % |  | 4.4 | % |  | 2.8 | %
Expected life (in years) | 2.9 |  | 2.9 |  | 2.9
Schedule of Assumptions, Fair Value of Employee Purchase Rights | The following assumptions were used in estimating the fair value of shares under the Employee Stock Purchase Plan:
| Fiscal Year Ended
| December 28, 2024 |  | December 30, 2023 |  | December 31, 2022
Employee Stock Purchase Plan: |  |  |  |  |
Dividend yield | — | % |  | — | % |  | — | %
Expected volatility | 40.4% - 58.7% |  | 40.6% - 60.2% |  | 42.6% - 60.8%
Risk-free interest rate | 4.7% - 5.5% |  | 0.8% - 5.5% |  | 0.1% - 3.0%
Expected life (in years) | 0.5 - 1.0 |  | 0.5 - 1.0 |  | 0.5 - 1.0

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