Consolidated Statements of Operations - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales		$ 2,240.9	$ 2,178.0	$ 2,227.8
Cost of sales	[1]	1,836.2	1,803.0	1,802.6
Gross profit		404.7	375.0	425.2
Operating costs and expenses:
Engineering, selling and administrative expenses		342.9	315.7	328.3
Amortization of intangible assets		3.1	2.9	3.2
Restructuring expense		4.9	4.6	1.3
Total operating costs and expenses		350.9	323.2	332.8
Operating income		53.8	51.8	92.4
Other expense:
Interest expense		(37.7)	(38.3)	(33.9)
Amortization of deferred financing fees		(1.5)	(1.4)	(1.3)
Other expense - net		(2.2)	(0.4)	(13.0)
Total other expense		(41.4)	(40.1)	(48.2)
Income before income taxes		12.4	11.7	44.2
Provision (benefit) for income taxes		5.2	(44.1)	5.0
Net income		$ 7.2	$ 55.8	$ 39.2
Per Share Data
Basic net income per common share		$ 0.2	$ 1.58	$ 1.12
Diluted net income per common share		$ 0.2	$ 1.56	$ 1.09

[1] The significant expense categories and amounts align with the segment-level information that is regularly provided to the CODM.