CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 565.3	$ 478.6	$ 1,128.2	$ 943.6
Cost of sales	444.8	369.6	858.4	738.9
Gross margin	120.5	109.0	269.8	204.7
Selling, general and administrative expense	63.2	62.9	124.6	120.9
Other operating income:
Currency transactions, net	11.9	0.5	10.4
Other operating expense, net	(4.0)	(2.8)	(7.1)	(6.0)
Income from operations	65.2	43.8	148.5	77.8
Other income (expense):
Interest and dividend income	0.6	0.1	0.7	0.2
Marketable equity securities	2.3	0.5	2.4	1.3
Other components of net periodic pension and OPEB cost	(3.1)	(4.3)	(6.3)	(8.6)
Interest expense	(4.3)	(5.2)	(8.8)	(10.2)
Income before income taxes	60.7	34.9	136.5	60.5
Income tax expense	14.8	9.2	33.1	15.2
Net income	$ 45.9	$ 25.7	103.4	45.3
Net income - basic			57.5	19.6
Net income - diluted			$ 57.5	$ 19.6
Net income per basic share	$ 0.40	$ 0.22	$ 0.90	$ 0.39
Net income per diluted share	$ 0.40	$ 0.22	$ 0.90	$ 0.39
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