Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Net sales	$ 330.3	$ 345.5	$ 659.7	$ 654.7
Cost of sales	242.0	264.2	479.0	496.5
Gross profit	88.3	81.3	180.7	158.2
Selling, general and administrative expenses	67.0	71.1	138.9	142.5
Goodwill impairment	0.0	20.2	0.0	20.2
Restructuring and other asset gains, net	(0.1)	0.7	(0.1)	(0.1)
Income (loss) from operations	21.4	(10.7)	41.9	(4.4)
Other income (expenses), net:
Interest expense	(2.1)	(3.1)	(4.1)	(5.8)
Interest income	1.6	0.4	2.2	1.0
Other income (expenses), net	1.7	(0.3)	2.3	0.2
Income (loss) before income taxes	22.6	(13.7)	42.3	(9.0)
Income tax provision	5.8	0.3	11.2	1.7
Net income (loss)	16.8	(14.0)	31.1	(10.7)
Net (income) loss attributable to noncontrolling interest	(0.1)	0.0	(0.1)	0.1
Net income (loss) attributable to controlling interest	$ 16.7	$ (14.0)	$ 31.0	$ (10.6)
Per share data:
(Loss) earnings per common share - Basic (in dollars per share)	$ 0.73	$ (0.61)	$ 1.36	$ (0.47)
(Loss) earnings per common share - Diluted (in dollars per share)	$ 0.72	$ (0.61)	$ 1.35	$ (0.47)
Weighted average shares outstanding - Basic (in shares)	22,877,075	22,796,729	22,855,304	22,779,414
Weighted average shares outstanding - Diluted (in shares)	23,074,780	22,796,729	23,025,924	22,779,414