STATEMENTS OF CONSOLIDATED INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 807.6	$ 948.8
Costs and expenses:
Cost of products sold, excluding depreciation and amortization	731.1	865.9
Depreciation and amortization	26.3	27.5
Selling, general, administrative, research and development	29.7	30.2
Restructuring costs	1.4
Total costs and expenses	788.5	923.6
Operating income	19.1	25.2
Other (expense) income:
Interest expense	(11.9)	(12.2)
Other income (expense), net - Note 9	13.6	(1.6)
Income before income taxes	20.8	11.4
Income tax provision	(4.9)	(3.3)
Net income	$ 15.9	$ 8.1
Net income per common share:
Basic	$ 1.00	$ 0.51
Diluted	$ 0.99	$ 0.51
Weighted-average number of common shares outstanding (in thousands):
Basic	15,940	15,866
Diluted	16,096	16,038