Quantitative Information Associated With Fair Value Measurement of Level 3 Financial Instrument (Detail) - Monte Carlo Simulation $ in Thousands	3 Months Ended
	Mar. 29, 2020 USD ($)
Mobile Industrial Robots (MiR)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Target achievement, volatility	16.00%
Discount rate	2.20%
Autoguide LLC [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Target achievement, volatility	14.00%
Discount rate	4.40%
Significant Unobservable Inputs (Level 3) | Mobile Industrial Robots (MiR)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 662
Significant Unobservable Inputs (Level 3) | Autoguide LLC [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 19,810