CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Net sales	$ 766.5	$ 702.1	$ 1,464.5	$ 1,397.5
Cost of goods and services sold	492.6	472.1	958.7	937.3
Gross profit	273.9	230.0	505.8	460.2
Research and development	19.1	17.5	35.4	35.1
Selling, general and administrative expenses	95.9	83.0	183.9	169.7
Other expense (income) (Note 14)	5.2	3.3	25.8	6.4
Operating profit	153.7	126.2	260.7	249.0
Interest expense, net	0.1	1.5	0.5	3.1
Interest income	(3.6)	(4.0)	(7.7)	(10.2)
Other nonoperating expense (income)	0.2	0.0	0.4	0.0
Income before income taxes and equity in net income of affiliated companies	157.0	128.7	267.5	256.1
Income tax expense	30.2	21.9	54.3	38.3
Equity in net income of affiliated companies	(5.0)	(4.5)	(8.4)	(8.8)
Net income	$ 131.8	$ 111.3	$ 221.6	$ 226.6
Net income per share:
Basic (in dollars per share)	$ 1.82	$ 1.52	$ 3.06	$ 3.09
Diluted (in dollars per share)	$ 1.82	$ 1.51	$ 3.05	$ 3.06
Weighted average shares outstanding:
Basic (in shares)	72.2	73.0	72.3	73.3
Diluted (in shares)	72.5	73.7	72.8	74.0