Other Income, Net - Schedule of Other Non-operating Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other Income and Expenses [Abstract]
Foreign exchange gains, net	$ 0.0	$ (1.2)
Other miscellaneous income, net	(2.2)	0.0
Total	$ (2.2)	$ (1.2)