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Summary of Significant Accounting Policies - Other Expense, Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 27, 2025 | Sep. 28, 2024 | Sep. 27, 2025 | Sep. 28, 2024
Accounting Policies [Abstract] |  |  |  |
Interest income | $ 503 | $ 1,676 | $ 2,391 | $ 6,568
Interest expense | (1,648) | (5,370) | (11,778) | (16,306)
Change in fair value of term loan | 3,766 | (8,769) | 1,079 | (13,515)
Debt issuance costs | (944) | (52) | (19,580) | (529)
Loss on strategic investments | (1,960) | 0 | (1,566) | (375)
Other | (428) | (33) | 1,063 | (426)
Other expense, net | (711) | $ (12,548) | (28,391) | $ (24,583)
Fair value of warrants issued during period | $ 0 |  | $ 16,800 |

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