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	$ 908.4	$ 971.2	$ 932.9
Cost of sales	601.3	650.2	583.8
Gross margin	307.1	321.0	349.1
Selling, general and administrative expenses	202.3	218.8	193.1
Research and development expenses	35.7	35.2	29.9
Restructuring and impairment charges	16.9	66.6	3.6
Other operating (income) expense, net	(33.1)	(144.0)	5.3
Operating income	85.3	144.4	117.2
Equity income in unconsolidated joint ventures	1.8	4.4	7.0
Other income (expense), net	(0.7)	1.1	4.6
Interest expense, net	(10.1)	(9.5)	(2.5)
Income before income tax expense	76.3	140.4	126.3
Income tax expense	19.7	23.8	18.2
Net income	$ 56.6	$ 116.6	$ 108.1
Basic earnings per share (in dollars per share)	$ 3.04	$ 6.21	$ 5.77
Diluted earnings per share (in dollars per share)	$ 3.03	$ 6.15	$ 5.73
Shares used in computing:
Basic earnings per share (in shares)	18.6	18.8	18.7
Diluted earnings per share (in shares)	18.7	19.0	18.9