Unaudited Quarterly Data (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								9 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effect of Fourth Quarter Events [Line Items]
Net sales										$ 1,034.9	$ 979.9	$ 941.5
Gross Profit	$ 34.6	$ 41.3	$ 55.1	$ 52.4	$ 45.0	$ 48.4	$ 54.1	$ 52.7		183.4	200.2	217.3
Operating Income (Loss)	17.8	16.5	(4.3)	24.1	19.1	29.0	29.2	27.0		54.1	104.3	114.1
Income from continuing operations	$ 12.9	$ 12.9	$ (4.8)	$ 16.2	$ 18.9	$ 18.8	$ 25.0	$ 17.6		$ 37.2	$ 80.3	$ 73.4
Earnings (Loss) Per Common Share
Basic (in dollar per share)	$ 0.77	$ 0.76	$ (0.29)	$ 0.96	$ 1.11	$ 1.11	$ 1.47	$ 1.04		$ 2.20	$ 4.74	$ 4.33
Diluted (in dollars per share)	$ 0.76	$ 0.75	$ (0.29)	$ 0.95	$ 1.10	$ 1.10	$ 1.46	$ 1.03		$ 2.17	$ 4.68	$ 4.26
Tax adjustments, settlements, and unusual provisions				$ 0.9	$ (5.9)
After-tax SERP settlement charge				0.6
Pension plan settlement charge			$ 1.0		0.6					$ 0.8	$ 0.6
Impairment loss	$ 2.9	$ (2.0)							$ (32.0)	(31.1)	0.0	$ 0.0
Restructuring, integration and other costs	(0.4)	2.2	0.3							2.1	1.3	7.0
Acquisition-related adjustments (Note 4)	0.8	3.1								(3.9)	0.0	0.0
Insurance recoveries		(0.4)				$ (3.2)				(0.4)	(3.2)	0.0
Change in statutory tax rate, amount										(1.6)	(9.7)	0.0
Acquisition related costs					0.4	0.9
Tax adjustments to prior years							$ (4.1)
Product
Effect of Fourth Quarter Events [Line Items]
Net sales	240.9	$ 256.2	$ 271.3	$ 266.5	$ 244.0	$ 245.1	$ 248.7	$ 242.1		1,034.9	$ 979.9	$ 941.5
Netherlands
Earnings (Loss) Per Common Share
Change in statutory tax rate, amount	$ (0.7)									$ (0.7)