STATEMENTS OF CONSOLIDATED (LOSS) INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 275.7	$ 375.3	$ 645.0	$ 770.5
Costs and expenses:
Cost of products sold, excluding depreciation and amortization and other items	224.5	303.5	511.1	618.6
Depreciation and amortization	13.0	12.1	26.2	24.0
Selling, general, administrative, research and development	22.7	27.2	46.6	52.4
Restructuring costs	11.9		11.9
Other operating (income) charges, net	(1.1)	0.1	(1.1)	0.1
Total costs and expenses	271.0	342.9	594.7	695.1
Operating income	4.7	32.4	50.3	75.4
Other income (expense):
Interest expense	(10.5)	(5.8)	(16.6)	(11.5)
Other income (expense), net	0.5	(0.1)	(0.3)	0.4
(Loss) income before income taxes	(5.3)	26.5	33.4	64.3
Income tax provision	(1.3)	(7.3)	(10.9)	(17.1)
Net (loss) income	$ (6.6)	$ 19.2	$ 22.5	$ 47.2
Net (loss) income per common share:
Basic	$ (0.41)	$ 1.19	$ 1.42	$ 2.93
Diluted	$ (0.41)	$ 1.18	$ 1.41	$ 2.89
Weighted-average number of common shares outstanding (in thousands):
Basic	15,781	16,063	15,809	16,085
Diluted	15,781	16,240	15,929	16,298