Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	$ 23.4	$ (22.2)	$ (2.2)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	2.4	(4.3)	0.1
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	25.8	(26.5)	(2.1)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(1.6)	(2.3)	(2.4)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0.4	0.8	0.9
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1.2)	(1.5)	(1.5)
Defined Benefit Pension and Other Postretirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	0.4	0.4	0.5
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(0.1)	(0.1)	(0.2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0.3	0.3	0.3
Net Prior Service Credit arising during period [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent			1.4
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent			(0.5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent			0.9
Net Deferred Actuarial Gain Arising During Period [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent		(0.1)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent		0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent		(0.1)
Gain on Termination of Postretirement Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent			(0.5)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent			0.2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent			(0.3)
Defined Benefit Pension and Other Postretirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(1.2)	(2.0)	(1.0)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0.3	0.7	0.4
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(0.9)	(1.3)	(0.6)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	34.6	(23.1)	(1.8)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(2.2)	(2.9)	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	32.4	(26.0)	(1.8)
Gain (Loss) from Hedging Activities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(10.0)	2.9	0.6
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	4.3	(2.1)	(0.3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (5.7)	$ 0.8	$ 0.3