CONDENSED CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
NET SALES	[1]	$ 426.6	$ 418.6
Cost of sales		314.8	308.8
GROSS MARGIN		111.8	109.8
OPERATING EXPENSES AND INCOME
Selling, general and administrative expenses		43.3	39.1
Research, development and engineering expenses		10.1	9.8
Equity, royalty and interest income from investees		10.4	8.4
Other operating expense, net		0.2	0.1
OPERATING INCOME		68.6	69.2
Interest expense		10.5	0.0
Other income (expense), net		0.2	(0.1)
INCOME BEFORE INCOME TAXES		58.3	69.1
Income tax expense		12.8	16.4
NET INCOME		$ 45.5	$ 52.7
PER SHARE DATA:
Weighted-average shares for basic EPS (in shares)		83.3	83.3
Weighted-average shares for diluted EPS (in shares)		83.6	83.3
Basic earnings per share (in dollars per share)		$ 0.55	$ 0.63
Diluted earnings per share (in dollars per share)		$ 0.54	$ 0.63

[1] Includes sales to related parties of $82.3 million for the three months ended March 31, 2024 compared with $89.1 million for the three months ended March 31, 2023.