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Business Segments - Product Lines (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2023	Jan. 02, 2022	Jan. 03, 2021
Instrumentation:
Net sales	$ 5,458.6	$ 4,614.3	$ 3,086.2
Instrumentation
Instrumentation:
Net sales	1,254.0	1,166.9	1,094.5
Instrumentation | Environmental Instrumentation
Instrumentation:
Net sales	465.0	446.3	411.3
Instrumentation | Marine Instrumentation
Instrumentation:
Net sales	460.7	424.1	426.3
Instrumentation | Test and Measurement Instrumentation
Instrumentation:
Net sales	$ 328.3	$ 296.5	$ 256.9

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Summary of the segments sales by business area.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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