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Restructuring Charges - Restructuring Charges (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Apr. 01, 2023 | Mar. 26, 2022
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | $ 1,217 | $ 313
Cost of revenues |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 25 | 139
Research and development |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 70 | 146
Selling, general and administrative |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 1,122 | 28
Probe Cards |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 1,134 | 42
Probe Cards | Cost of revenues |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 70 | 39
Probe Cards | Research and development |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 4 | 0
Probe Cards | Selling, general and administrative |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 1,060 | 3
Systems |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 83 | 271
Systems | Cost of revenues |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | (45) | 100
Systems | Research and development |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 66 | 146
Systems | Selling, general and administrative |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | $ 62 | $ 25

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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