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Restructuring Charges - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended | 14 Months Ended | 27 Months Ended
--- | --- | --- | ---
Dec. 30, 2023 | Dec. 31, 2022 | Dec. 30, 2023 | Dec. 30, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 1,835 | $ 15,586 |  |
2022 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Workforce reduction (percent) | 13.00% |  |  |
Restructuring charges |  |  | $ 8,100 |
2022 Restructuring Plan | Corporate and Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  | 500 |
2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 800 |  |  | $ 13,300
Probe Cards | 2022 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 1,100 |  | 7,100 |
Probe Cards | 2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 300 |  |  | 10,100
Systems | 2022 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  | 500 |
Systems | 2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 500 |  |  | 3,200
Employee Severance and Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 917 | 7,269 |  |
Employee Severance and Benefits | 2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  |  | 1,400
Contract Termination & Other Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 233 | 502 |  |
Contract Termination & Other Costs | 2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  |  | 2,000
Inventory Impairments & Other Inventory Related Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 390 | 7,629 |  |
Inventory Impairments & Other Inventory Related Costs | 2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  |  | 9,400
Other Restructuring | 2021 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  |  | $ 500
Stock-based Compensation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 295 | $ 0 |  |
Stock-based Compensation | 2022 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  |  | $ 300 |

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