STATEMENTS OF CONSOLIDATED INCOME (LOSS) (UNAUDITED) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 748.9	$ 750.6	$ 2,651.9	$ 1,815.6
Costs and expenses:
Cost of products sold, excluding depreciation and amortization and other items	694.9	677.8	2,459.2	1,613.6
Depreciation and amortization	25.8	24.9	80.4	64.2
Selling, general, administrative, research and development	25.2	28.1	82.9	90.8
Restructuring costs (benefit)				(0.8)
Other operating charges, net			3.2
Total costs and expenses	745.9	730.8	2,625.7	1,767.8
Operating income	3.0	19.8	26.2	47.8
Other expense:
Interest expense	(12.1)	(12.5)	(36.5)	(37.2)
Other income (expense), net - Note 8	12.7	(1.2)	7.4	(38.2)
Income (loss) before income taxes	3.6	6.1	(2.9)	(27.6)
Income tax (provision) benefit	(1.1)	(8.4)	(0.3)	7.4
Net income (loss)	$ 2.5	$ (2.3)	$ (3.2)	$ (20.2)
Net income (loss) per common share:
Basic	$ 0.16	$ (0.14)	$ (0.20)	$ (1.28)
Diluted	$ 0.16	$ (0.14)	$ (0.20)	$ (1.28)
Weighted-average number of common shares outstanding (in thousands):
Basic	15,926	15,852	15,897	15,831
Diluted	16,029	15,852	15,897	15,831