CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 3,283.1	$ 3,345.5	$ 2,786.0
Operating costs and expenses:
Cost of sales	2,104.1	2,156.2	1,770.9
Selling, general and administrative	698.0	721.0	605.9
Asbestos provision, net	229.0	0.0	0.0
Environmental provision, net	18.9	0.0	0.0
Restructuring charges	17.5	7.2	13.0
Acquisition-related and integration charges	5.2	19.8	7.8
Operating profit	210.4	441.3	388.4
Other income (expense):
Interest income	2.7	2.3	2.5
Interest expense	(46.8)	(50.9)	(36.1)
Miscellaneous income, net	4.4	18.7	12.7
Total other income (expense)	(39.7)	(29.9)	(20.9)
Income before income taxes	170.7	411.4	367.5
Provision for income taxes	37.1	75.9	195.0
Net income before allocation to noncontrolling interests	133.6	335.5	172.5
Less: Noncontrolling interest in subsidiaries’ earnings (loss)	0.3	(0.1)	0.7
Net income attributable to common shareholders	$ 133.3	$ 335.6	$ 171.8
Earnings per share - basic:
Basic earnings per share (in dollars per share)	$ 2.23	$ 5.63	$ 2.89
Weighted average basic shares outstanding (in shares)	59.8	59.6	59.4
Earnings per share - diluted:
Diluted earnings per share (in dollars per share)	$ 2.20	$ 5.50	$ 2.84
Weighted average diluted shares outstanding (in shares)	60.6	61.0	60.4