Schedule of Segment Reporting Information by Segment Charges (Detail) - USD ($) $ in Thousands	3 Months Ended
Apr. 04, 2021	Mar. 29, 2020
Segment Reporting Information [Line Items]
Contingent consideration adjustment	$ (7,227)	$ (10,020)
Other (income) expense, net—loss on convertible debt conversions	(3,824)	(6,849)
Semiconductor Test
Segment Reporting Information [Line Items]
Acquisition related costs	200
Cost of revenues—inventory charge	1,079	3,026
Contingent consideration adjustment	10,000
Industrial Automation
Segment Reporting Information [Line Items]
Acquisition related costs		618
Cost of revenues—inventory charge	1,221
Corporate And Eliminations \| Restructuring and other
Segment Reporting Information [Line Items]
Acquisition related costs	(513)	741
Other (income) expense, net—loss on convertible debt conversions	4,069
Corporate And Eliminations \| Universal Robots (UR) \| Restructuring and other
Segment Reporting Information [Line Items]
Contingent consideration adjustment	$ (7,227)	(7,142)
Corporate And Eliminations \| Mobile Industrial Robots (MiR) \| Restructuring and other
Segment Reporting Information [Line Items]
Contingent consideration adjustment		$ (2,878)

Cost of revenues-provision for excess and obsolete inventory.

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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.

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

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-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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