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Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 25, 2021
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 212,299 | $ 212,761
Foreign currency translation | (1,405) | (2,068)
Goodwill, ending balance | 211,444 | 212,299
Baldwin Park |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period |  | 352
High Precision Devices, Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period |  | 1,254
Woburn |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period | 550 |
Probe Cards |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 178,424 | 178,072
Foreign currency translation | 0 | 0
Goodwill, ending balance | 178,424 | 178,424
Probe Cards | Baldwin Park |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period |  | 352
Probe Cards | High Precision Devices, Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period |  | 0
Probe Cards | Woburn |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period | 0 |
Systems |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 33,875 | 34,689
Foreign currency translation | (1,405) | (2,068)
Goodwill, ending balance | 33,020 | 33,875
Systems | Baldwin Park |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period |  | 0
Systems | High Precision Devices, Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period |  | $ 1,254
Systems | Woburn |  |
Goodwill [Roll Forward] |  |
Goodwill, acquired during period | $ 550 |

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