Segment Information - Sales (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021
Revenue from External Customer [Line Items]
Net sales	$ 1,363.6	$ 1,311.9	$ 4,040.4	$ 3,238.6
Instrumentation
Revenue from External Customer [Line Items]
Net sales	306.4	287.1	927.8	864.7
Instrumentation | Environmental Instrumentation
Revenue from External Customer [Line Items]
Net sales	114.8	108.0	344.3	335.6
Instrumentation | Marine Instrumentation
Revenue from External Customer [Line Items]
Net sales	110.0	104.7	337.2	311.6
Instrumentation | Test and Measurement Instrumentation
Revenue from External Customer [Line Items]
Net sales	$ 81.6	$ 74.4	$ 246.3	$ 217.5