CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($) shares in Millions, $ 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	$ 459.6	$ 499.8	$ 1,587.8	$ 1,443.4
Cost of sales	375.6	376.8	1,234.0	1,115.7
Gross margin	84.0	123.0	353.8	327.7
Selling, general and administrative expense	59.0	64.2	183.6	185.1
Other operating income:
Currency transactions, net	6.7	1.2	17.1	1.2
Other operating expense, net	(0.9)	(2.7)	(8.0)	(8.7)
Income from operations	30.8	57.3	179.3	135.1
Other income (expense):
Interest and dividend income	1.4		2.1	0.2
Marketable equity securities	(2.9)	(0.1)	(0.5)	1.2
Other components of net periodic pension and OPEB cost	(2.9)	(4.3)	(9.2)	(12.9)
Interest expense	(4.2)	(4.8)	(13.0)	(15.0)
Income before income taxes	22.2	48.1	158.7	108.6
Income tax expense	1.2	12.1	34.3	27.3
Net income	21.0	36.0	124.4	81.3
Net income - basic	21.0	36.0	124.4	81.3
Net income - diluted	$ 21.0	$ 36.0	$ 124.4	$ 81.3
Net income per share - basic	$ 0.18	$ 0.31	$ 1.08	$ 0.70
Net income per share - diluted	$ 0.18	$ 0.31	$ 1.08	$ 0.70
Weighted average shares outstanding - basic	115.5	115.5	115.5	115.5
Weighted average shares outstanding - diluted	115.5	115.5	115.5	115.5