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Restructuring and Other - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Restructuring Cost and Reserve
Contingent consideration adjustment			$ 19,239	$ (8,701)
Semiconductor Test
Restructuring Cost and Reserve
Contingent consideration adjustment		$ (11,700)		(8,700)
Severance benefit and charges	$ 800	800	800	1,800
Acquisition related costs	3,100		4,500
Impairment charges fixed assets	4,000	500		1,600
Contract termination settlement fee	4,000	$ 0	4,000	0
Restructuring and other			1,100
Universal Robots (UR)
Restructuring Cost and Reserve
Contingent consideration adjustment				$ 3,800
TER Corporate And Eliminations | Universal Robots (UR)
Restructuring Cost and Reserve
Contingent consideration adjustment	29,900		22,800
TER Corporate And Eliminations | Mobile Industrial Robots (MiR)
Restructuring Cost and Reserve
Contingent consideration adjustment	$ (600)		$ (3,600)

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The loss recognized on termination of a contract.

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