Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 602.8	$ 497.2	$ 1,111.1	$ 956.2
Cost of sales	479.8	408.5	881.8	782.5
Gross profit	123.0	88.7	229.3	173.7
Operating costs and expenses:
Engineering, selling and administrative expenses	87.6	69.3	162.7	135.8
Amortization of intangible assets	0.7	0.8	1.7	1.6
Restructuring expense	0.3	0.3	0.3	0.4
Total operating costs and expenses	88.6	70.4	164.7	137.8
Operating income	34.4	18.3	64.6	35.9
Other expense:
Interest expense	(9.0)	(7.9)	(17.1)	(15.3)
Amortization of deferred financing fees	(0.4)	(0.3)	(0.7)	(0.7)
Other expense - net	(10.0)	(2.1)	(11.1)	(2.3)
Total other expense	(19.4)	(10.3)	(28.9)	(18.3)
Income before income taxes	15.0	8.0	35.7	17.6
Benefit for income taxes	(5.2)	(7.1)	(1.0)	(0.6)
Net income	$ 20.2	$ 15.1	$ 36.7	$ 18.2
Per Share Data
Basic net income per common share	$ 0.58	$ 0.43	$ 1.05	$ 0.52
Diluted net income per common share	$ 0.57	$ 0.42	$ 1.03	$ 0.51
Weighted average shares outstanding - basic	35,084,580	35,283,969	35,102,924	35,208,349
Weighted average shares outstanding - diluted	35,650,143	35,550,942	35,766,952	35,564,882