Accumulated Other Comprehensive Loss Components (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning	$ (149.6)
Other comprehensive income (loss) before reclassifications	(42.2)
Amounts reclassified out from accumulated other comprehensive income (loss)	(0.5)
Other comprehensive (loss) income, net of tax	(42.7)	$ 0.8
Balance, ending	(192.3)
Gains (Losses) on Derivatives [Member]
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning	(0.8)
Other comprehensive income (loss) before reclassifications	4.1
Amounts reclassified out from accumulated other comprehensive income (loss)	(1.5)
Other comprehensive (loss) income, net of tax	2.6
Balance, ending	1.8
Unrealized Gains on Investment Securities [Member]
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning	0.4
Other comprehensive income (loss) before reclassifications	0.0
Amounts reclassified out from accumulated other comprehensive income (loss)	0.0
Other comprehensive (loss) income, net of tax	0.0
Balance, ending	0.4
Defined Benefit Pension and Other Postretirement Plans [Member]
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning	(40.3)
Other comprehensive income (loss) before reclassifications	1.0
Amounts reclassified out from accumulated other comprehensive income (loss)	1.0
Other comprehensive (loss) income, net of tax	2.0
Balance, ending	(38.3)
Foreign Currency Translation [Member]
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning	(108.9)
Other comprehensive income (loss) before reclassifications	(47.3)
Amounts reclassified out from accumulated other comprehensive income (loss)	0.0
Other comprehensive (loss) income, net of tax	(47.3)
Balance, ending	$ (156.2)