CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 581.2	$ 509.6	$ 1,146.5	$ 1,023.4
Operating costs and expenses:
Cost of sales	357.3	308.5	702.1	615.4
Selling, general and administrative	127.3	138.0	258.4	267.4
Operating profit	96.6	63.1	186.0	140.6
Other (expense) income:
Interest income	1.3	0.8	2.5	1.7
Interest expense	(7.4)	(5.3)	(14.6)	(11.8)
Miscellaneous income (expense), net	1.1	(1.3)	(0.2)	(1.9)
Total other expense, net	(5.0)	(5.8)	(12.3)	(12.0)
Income from continuing operations before income taxes	91.6	57.3	173.7	128.6
Provision for income taxes	20.0	14.0	37.3	29.4
Net income from continuing operations attributable to common shareholders	71.6	43.3	136.4	99.2
Income from discontinued operations, net of tax (Note 3)	0.0	2.3	0.0	52.1
Net income attributable to common shareholders	$ 71.6	$ 45.6	$ 136.4	$ 151.3
Earnings per basic share:
Earnings (loss) per basic share from continuing operations (in dollars per share)	$ 1.25	$ 0.76	$ 2.39	$ 1.75
Earnings per basic share from discontinued operations (in dollars per share)	0	0.04	0	0.92
Earnings (loss) per basic share (in dollars per share)	1.25	0.80	2.39	2.67
Earnings per diluted share:
Earnings (loss) per diluted share from continuing operations (in dollars per share)	1.23	0.75	2.34	1.73
Earnings per diluted share from discontinued operations (in dollars per share)	0	0.04	0	0.91
Earnings (loss) per diluted share (in dollars per share)	$ 1.23	$ 0.79	$ 2.34	$ 2.64
Average shares outstanding:
Average basic shares outstanding (in shares)	57.2	56.7	57.1	56.6
Average diluted shares outstanding (in shares)	58.3	57.4	58.2	57.4
Dividends per share (in dollars per share)	$ 0.205	$ 0.18	$ 0.41	$ 0.18