Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 497.2	$ 463.6	$ 956.2	$ 817.9
Cost of sales	408.5	373.2	782.5	659.1
Gross profit	88.7	90.4	173.7	158.8
Operating costs and expenses:
Engineering, selling and administrative expenses	69.3	63.6	135.8	121.3
Amortization of intangible assets	0.8	0.1	1.6	0.2
Restructuring (income) expense	0.3	0.0	0.4	(0.1)
Total operating costs and expenses	70.4	63.7	137.8	121.4
Operating income	18.3	26.7	35.9	37.4
Other income (expense):
Interest expense	(7.9)	(7.3)	(15.3)	(14.4)
Amortization of deferred financing fees	(0.3)	(0.3)	(0.7)	(0.7)
Other income (expense) - net	(2.1)	2.8	(2.3)	0.7
Total other expense - net	(10.3)	(4.8)	(18.3)	(14.4)
Income before income taxes	8.0	21.9	17.6	23.0
Provision for income taxes	(7.1)	4.0	(0.6)	8.2
Net income	$ 15.1	$ 17.9	$ 18.2	$ 14.8
Per Share Data
Basic net income per common share	$ 0.43	$ 0.51	$ 0.52	$ 0.42
Diluted net income per common share	$ 0.42	$ 0.50	$ 0.51	$ 0.42
Weighted average shares outstanding - basic	35,283,969	34,903,657	35,208,349	34,856,950
Weighted average shares outstanding - diluted	35,550,942	35,602,042	35,564,882	35,460,779