Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 472.3	$ 457.7
Cost of sales	354.1	330.0
Gross margin	118.2	127.7
Selling, general and administrative expenses	49.0	50.8
Research and technology expenses	15.1	13.9
Other operating expense	1.2	0.2
Operating income (loss)	52.9	62.8
Interest expense, net	6.5	9.4
Income before income taxes, and equity in earnings from affiliated companies	46.4	53.4
Income tax expense	9.9	11.7
Income before equity in earnings from affiliated companies	36.5	41.7
Equity in earnings from affiliated companies	0.0	1.0
Net income	$ 36.5	$ 42.7
Basic net income per common share	$ 0.44	$ 0.5
Diluted net income per common share	$ 0.43	$ 0.5
Weighted-average common shares:
Basic	83.9	84.6
Diluted	84.8	85.5