Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	[1],[2]	$ 1,789.0	$ 1,577.7	$ 1,324.7
Cost of sales		1,355.8	1,220.6	1,074.6
Gross margin		433.2	357.1	250.1
Selling, general and administrative expenses		163.8	148.0	135.0
Research and technology expenses		52.7	45.8	45.1
Other operating expense (income)		1.4	(11.9)	18.2
Operating income		215.3	175.2	51.8
Interest expense, net		34.0	36.2	38.3
Other expense (income)		71.6	(10.8)	(8.5)
Income before income taxes, and equity in earnings from affiliated companies		109.7	149.8	22.0
Income tax expense		12.1	31.6	5.9
Income before equity in earnings		97.6	118.2	16.1
Equity in earnings from affiliated companies		8.1	8.1	0.0
Net income		$ 105.7	$ 126.3	$ 16.1
Basic net income per common share:		$ 1.25	$ 1.5	$ 0.19
Diluted net income per common share:		$ 1.24	$ 1.49	$ 0.19
Weighted-average common shares:
Basic		84.6	84.4	84.1
Diluted		85.5	85.0	84.6

[1] Net sales by geography based on the location in which the product sold was manufactured.

[2] Net sales to external customers based on the location to which the product sold was delivered.