CONDENSED CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
NET SALES	[1]	$ 416.5	$ 426.6
Cost of sales		306.0	314.8
GROSS MARGIN		110.5	111.8
OPERATING EXPENSES AND INCOME
Selling, general and administrative expenses		45.9	43.3
Research, development and engineering expenses		9.1	10.1
Equity, royalty and interest income from investees		9.2	10.4
Other operating (income) expense, net		(0.2)	0.2
OPERATING INCOME		64.9	68.6
Interest expense		8.4	10.5
Other income, net		0.3	0.2
INCOME BEFORE INCOME TAXES		56.8	58.3
Income tax expense		12.1	12.8
NET INCOME		$ 44.7	$ 45.5
PER SHARE DATA:
Weighted-average shares for basic EPS (in shares)		82.8	83.3
Weighted-average shares for diluted EPS (in shares)		83.2	83.6
Basic earnings per share (in dollars per share)		$ 0.54	$ 0.55
Diluted earnings per share (in dollars per share)		$ 0.54	$ 0.54

[1] Includes sales to related parties of $13.7 million for the three months ended March 31, 2025, compared with $82.3 million for the three months ended March 31, 2024.