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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net sales	$ 273.8	$ 249.7
Cost of sales	203.5	187.8
Gross profit	70.3	61.9
Selling, engineering, general and administrative expenses	43.9	41.8
Acquisition and integration-related expenses	0.6	0.5
Operating income	25.8	19.6
Interest expense	2.0	2.5
Other expense, net	0.4	0.1
Income before income taxes	23.4	17.0
Income tax expense	5.9	4.1
Net income	$ 17.5	$ 12.9
Basic earnings per share:
Earnings per share (usd per share)	$ 0.29	$ 0.22
Diluted earnings per share:
Net earnings per share (usd per share)	$ 0.29	$ 0.21
Weighted average common shares outstanding:
Basic (shares)	60.1	59.8
Diluted (shares)	61.2	60.8

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