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Acquisitions - Additional Information (Detail)			1 Months Ended	9 Months Ended
	Nov. 13, 2019 USD ($)	Apr. 25, 2018 USD ($)	Jan. 30, 2019 USD ($)	Sep. 27, 2020 USD ($)	Jun. 28, 2020 USD ($)	Jan. 31, 2019 USD ($)
Mobile Industrial Robots (MiR)
Business Acquisition [Line Items]
Total preliminary purchase price		$ 81,599,000
Arrangement range of outcomes value high				$ 65,800,000
Goodwill, not deductible for tax purposes		$ 41,200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		6 years 1 month 6 days
Lemsys [Member]
Business Acquisition [Line Items]
Total preliminary purchase price						$ 1,400,000
Total preliminary purchase price			$ 9,100,000
Acquired value of intangible assets						4,600,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			5 years 2 months 12 days
Net tangible assets						$ 3,100,000
Autoguide LLC [Member]
Business Acquisition [Line Items]
Arrangement range of outcomes value high				$ 106,900,000	$ 106,900,000
Autoguide LLC [Member] | Industrial Automation [Member]
Business Acquisition [Line Items]
Total preliminary purchase price	$ 81,600,000
Cash paid to acquire outstanding common and preferred stock	57,600,000
Contingent consideration	$ 24,000,000.0
Quantity of material to be transported				4,500
Business acquisition percentage of equity	100.00%

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