CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net sales	$ 1,265.4	$ 1,170.3	$ 1,243.5
Cost of sales	914.0	862.4	933.0
Gross profit	351.4	307.9	310.5
Selling, distribution and administrative expenses	279.8	276.3	287.1
Special charges, net	0.3	3.9	26.9
Operating income (loss) from continuing operations	71.3	27.7	(3.5)
Foreign currency exchange loss	0.0	1.3	7.5
Interest and other expense, net	0.5	0.3	0.7
Income (loss) from continuing operations before income taxes	70.8	26.1	(11.7)
(Benefit) provision for income taxes	(5.3)	9.2	12.3
Net income (loss) from continuing operations	76.1	16.9	(24.0)
Loss from discontinued operations, net of tax	(35.7)	(49.5)	(75.8)
Net income (loss)	$ 40.4	$ (32.6)	$ (99.8)
Basic and diluted EPS:
Net income (loss) per share from continuing operations-basic (in dollars per share)	$ 2.06	$ 0.45	$ (0.65)
Net income (loss) per share from continuing operations-diluted (in dollars per share)	2.02	0.45	(0.65)
Net loss per share from discontinued operations - basic and diluted (in dollars per share)	(0.96)	(1.33)	(2.04)
Net income per share - basic (in dollars per share)	1.09	(0.88)	2.69
Net income per share - diluted (in dollars per share)	$ 1.07	$ (0.88)	$ 2.69
Weighted average common and common equivalent shares:
Basic (in shares)	37.0	37.2	37.1
Diluted (in shares)	37.6	37.2	37.1
Dividends declared	$ 1.85	$ 0.10	$ 0