CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 941.5	$ 887.7	$ 839.7
Cost of products sold	727.0	692.3	668.9
Gross profit	214.5	195.4	170.8
Selling, general and administrative expenses	92.2	86.5	78.0
Integration/restructuring costs	7.0	6.5	2.3
Pension plan settlement charge	0.8	0.0	3.5
Loss on early extinguishment of debt	0.0	0.0	0.2
Other expense — net	0.4	1.0	0.2
Operating income	114.1	101.4	86.6
Interest expense	11.2	11.7	11.4
Interest income	(0.1)	(0.2)	(0.3)
Income from continuing operations before income taxes	103.0	89.9	75.5
Provision for income taxes	29.6	29.4	7.5
Income from continuing operations	73.4	60.5	68.0
Income (loss) from discontinued operations, net of income taxes	(0.4)	(9.4)	0.7
Net income	$ 73.0	$ 51.1	$ 68.7
Basic
Continuing operations (in dollars per share)	$ 4.33	$ 3.58	$ 4.05
Discontinued operations (in dollars per share)	(0.02)	(0.56)	0.04
Basic (in dollars per share)	4.31	3.02	4.09
Diluted
Continuing operations (in dollars per share)	4.26	3.53	3.99
Discontinued operations (in dollars per share)	(0.02)	(0.55)	0.04
Diluted (in dollars per share)	$ 4.24	$ 2.98	$ 4.03
Weighted Average Common Shares Outstanding (in thousands)
Basic (in shares)	16,773	16,754	16,584
Diluted (in shares)	17,087	17,012	16,872