Condensed Consolidated Statements of Operations (Unaudited) - 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	$ 539.5		$ 562.1		$ 1,010.4		$ 1,057.2
Cost of sales	440.5	[1]	462.4	[2]	821.6	[1]	865.0	[2]
Gross profit	99.0		99.7		188.8		192.2
Operating costs and expenses:
Engineering, selling and administrative expenses	87.4		83.7		170.3		159.7
Amortization of intangible assets	0.8		0.8		1.6		1.5
Restructuring expense	1.0		2.3		1.8		2.9
Total operating costs and expenses	89.2		86.8		173.7		164.1
Operating income	9.8		12.9		15.1		28.1
Other income (expense):
Interest expense	(9.2)		(9.6)		(17.9)		(18.8)
Amortization of deferred financing fees	(0.3)		(0.4)		(0.7)		(0.7)
Other income (expense) - net	1.0		0.3		(4.0)		1.0
Total other expense	(8.5)		(9.7)		(22.6)		(18.5)
Income (loss) before income taxes	1.3		3.2		(7.5)		9.6
Provision (benefit) for income taxes	(0.2)		1.6		(2.7)		3.5
Net income (loss)	$ 1.5		$ 1.6		$ (4.8)		$ 6.1
Per Share Data and Share Amounts:
Basic net income (loss) per common share	$ 0.04		$ 0.05		$ (0.14)		$ 0.17
Diluted net income (loss) per common share	$ 0.04		$ 0.04		$ (0.14)		$ 0.17
Weighted average shares outstanding - basic	35,452,594		35,368,492		35,363,682		35,316,971
Weighted average shares outstanding - diluted	35,823,866		35,738,322		35,363,682		35,899,481

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

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