CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net sales	$ 2,786.0	$ 2,748.0	$ 2,740.5
Operating costs and expenses
Cost of sales	1,770.9	1,758.3	1,786.1
Selling, general and administrative	592.4	597.0	566.5
Asbestos provision	0.0	192.4	0.0
Transaction related charges	7.8	0.0	0.0
Restructuring charges	13.0	0.0	7.8
Acquisition integration related charges	0.0	0.0	7.2
Total operating costs and expenses	2,384.1	2,547.7	2,367.6
Operating profit	401.9	200.3	372.9
Other income (expense):
Interest income	2.5	1.9	1.9
Interest expense	(36.1)	(36.5)	(37.6)
Miscellaneous expense	(0.8)	(1.6)	(0.7)
Total other income (expense)	(34.4)	(36.2)	(36.4)
Income before income taxes	367.5	164.1	336.5
Provision for income taxes	195.0	40.3	106.5
Net income before allocation to noncontrolling interests	172.5	123.8	230.0
Less: Noncontrolling interest in subsidiaries’ earnings	0.7	1.0	1.1
Net income attributable to common shareholders	$ 171.8	$ 122.8	$ 228.9
Earnings per share - basic:
Earnings Per Share, Basic	$ 2.89	$ 2.10	$ 3.94
Weighted average basic shares outstanding	59.4	58.5	58.1
Earnings per share - diluted:
Earnings Per Share, Diluted	$ 2.84	$ 2.07	$ 3.89
Weighted average diluted shares outstanding	60.4	59.3	58.8