Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	$ 10.6	$ 23.4	$ (22.2)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0.3	2.4	(4.3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	10.9	25.8	(26.5)
Defined Benefit Pension and Other Postretirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(0.9)	(1.2)	(2.0)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0.2	0.3	0.7
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(0.7)	(0.9)	(1.3)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	18.5	34.6	(23.1)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(2.0)	(2.2)	(2.9)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	16.5	32.4	(26.0)
Gain (Loss) from Hedging Activities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(7.0)	(10.0)	2.9
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	2.1	4.3	(2.1)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (4.9)	$ (5.7)	$ 0.8