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Schedule of Segment Reporting Information by Segment Charges (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 03, 2021 | Sep. 27, 2020 | Oct. 03, 2021 | Sep. 27, 2020
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other | $ 300 |  | $ 600 |
Acquisition related costs | 300 |  | 300 |
Restructuring and other—employee severance | 1,197 | $ (27,701) | (3,426) | $ 1,915
Other (income) expense, net - loss on convertible debt conversion | (21,486) | (764) | (25,223) | (3,595)
Contingent consideration adjustment |  |  | (7,227) | (7,967)
Semiconductor Test |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues - inventory charge | 3,725 | 1,131 | 4,959 | 7,956
Restructuring and other—Contract termination settlement charge |  |  |  | 4,000
Acquisition related costs |  |  |  | 3,400
Industrial Automation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues - inventory charge | 3,656 |  | 4,941 | 505
Acquisition related costs |  |  | 825 | 790
Restructuring and other—employee severance | 476 |  | 965 | 664
System Test |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues - inventory charge |  |  | 524 | 698
Wireless Test |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of revenues - inventory charge | 679 | 1,802 | 1,351 | 3,957
Corporate And Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring and other |  |  | 1,846 |
Corporate And Eliminations | Restructuring and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Acquisition related costs |  | (1,086) | (513) | 2,629
Other (income) expense, net - loss on convertible debt conversion | $ 20,153 |  | 25,397 |
Corporate And Eliminations | Universal Robots (UR) | Restructuring and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Contingent consideration adjustment |  | $ (27,206) | $ (7,227) | (4,421)
Corporate And Eliminations | Mobile Industrial Robots (MiR) | Restructuring and other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Contingent consideration adjustment |  |  |  | $ (3,546)

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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