Derivatives (Details 2) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Revenues	$ 261.9	$ 280.7	$ 728.0	$ 842.8
Interest Income	0.8	0.8	2.5	2.5
Net Foreign Currency Transaction Losses	(0.9)	(0.6)	(5.0)	(0.6)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	(0.1)	(0.1)	(0.1)	(0.1)
Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness	0.6	0.7	2.1	2.1
Foreign Currency Gain (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Foreign Currency Cash Flow Hedge Ineffectiveness	$ (7.3)	$ 7.1	$ (7.6)	$ 8.1