Losses and Other Expenses, net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Losses (Gains) and Other Expenses, net [Abstract]
Realized (gains) losses on settled futures contracts	$ (0.4)	$ (1.7)	$ 1.1
Foreign currency exchange losses (gains)	1.7	(1.8)	2.2
Losses on disposal of fixed assets	0.7	0.2	0.5
Net change in unrealized losses (gains) on unsettled futures contracts	1.5	0.9	(3.6)
Asbestos-related litigation	4.0	3.5	6.3
Special legal contingency charges	1.9	3.7	1.9
Environmental liabilities	2.2	2.2	1.9
Contractor tax payments	0.0	0.1	0.6
Other items, net	1.8	0.0	0.4
Losses (gains) and other expenses, net	$ 13.4	$ 7.1	$ 11.3