Business Segments - Sales (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Revenue from External Customer [Line Items]
Total net sales	$ 1,383.3	$ 1,321.0
Instrumentation
Revenue from External Customer [Line Items]
Total net sales	333.5	308.9
Instrumentation | Marine Instrumentation
Revenue from External Customer [Line Items]
Total net sales	128.2	111.9
Instrumentation | Environmental Instrumentation
Revenue from External Customer [Line Items]
Total net sales	117.9	114.0
Instrumentation | Test and Measurement Instrumentation
Revenue from External Customer [Line Items]
Total net sales	$ 87.4	$ 83.0