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Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 30, 2024 | Sep. 28, 2024
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 201,090 | $ 201,090
Foreign currency translation | 306 | 164
Goodwill, ending balance |  | 200,137
FRT Metrology |  |
Goodwill [Roll Forward] |  |
Reduction - divesture | (10,660) |
China Operations |  |
Goodwill [Roll Forward] |  |
Reduction - divesture |  | (1,117)
Probe Cards |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 178,424 | 178,424
Foreign currency translation | 0 | 0
Goodwill, ending balance |  | 177,369
Probe Cards | FRT Metrology |  |
Goodwill [Roll Forward] |  |
Reduction - divesture | 0 |
Probe Cards | China Operations |  |
Goodwill [Roll Forward] |  |
Reduction - divesture |  | (1,055)
Systems |  |
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | 22,666 | 22,666
Foreign currency translation | 306 | 164
Goodwill, ending balance |  | 22,768
Systems | FRT Metrology |  |
Goodwill [Roll Forward] |  |
Reduction - divesture | $ (10,660) |
Systems | China Operations |  |
Goodwill [Roll Forward] |  |
Reduction - divesture |  | $ (62)

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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 49 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-49 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482548/350-20-55-24 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482598/350-20-45-1 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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