Business Segments - Sales (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 01, 2023	Oct. 02, 2022
Revenue from External Customer [Line Items]
Total net sales	$ 1,402.5	$ 1,363.6	$ 4,210.5	$ 4,040.4
Instrumentation
Revenue from External Customer [Line Items]
Total net sales	329.1	306.4	991.0	927.8
Instrumentation | Marine Instrumentation
Revenue from External Customer [Line Items]
Total net sales	132.5	110.0	388.1	337.2
Instrumentation | Environmental Instrumentation
Revenue from External Customer [Line Items]
Total net sales	113.0	114.8	346.2	344.3
Instrumentation | Test and Measurement Instrumentation
Revenue from External Customer [Line Items]
Total net sales	$ 83.6	$ 81.6	$ 256.7	$ 246.3