CONDENSED CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
NET SALES	[1]	$ 403.7	$ 396.2	$ 1,262.9	$ 1,228.4
Cost of sales		292.4	293.3	907.9	901.3
GROSS MARGIN		111.3	102.9	355.0	327.1
OPERATING EXPENSES AND INCOME
Selling, general and administrative expenses		46.4	41.3	138.8	126.4
Research, development and engineering expenses		9.7	11.1	30.2	33.2
Equity, royalty and interest income from investees		8.1	8.1	26.7	24.8
Other operating expense (income), net		0.1	(0.2)	1.1	0.1
OPERATING INCOME		63.2	58.8	211.6	192.2
Interest expense		10.4	11.0	31.4	15.2
Other income, net		0.9	1.1	3.7	2.2
INCOME BEFORE INCOME TAXES		53.7	48.9	183.9	179.2
Income tax expense		9.9	11.3	38.4	42.7
NET INCOME		$ 43.8	$ 37.6	$ 145.5	$ 136.5
PER SHARE DATA:
Weighted-average shares for basic EPS (in shares)		83.2	83.3	83.3	83.3
Weighted-average shares for diluted EPS (in shares)		83.6	83.4	83.6	83.4
Basic earnings per share (in dollars per share)		$ 0.53	$ 0.45	$ 1.75	$ 1.64
Diluted earnings per share (in dollars per share)		$ 0.52	$ 0.45	$ 1.74	$ 1.64

[1] Includes sales to related parties of $12.5 million and $112.2 million for the three and nine months ended September 30, 2024, respectively, compared with $86.9 million and $263.2 million for the three and nine months ended September 30, 2023, respectively.