Derivatives (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Revenues	$ 214.0	$ 299.7	$ 466.1	$ 562.1
Interest Income	0.8	0.9	1.7	1.7
Net Foreign Currency Transaction Losses	0.0	(0.2)	(4.1)	0.0
Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness	0.8	0.7	1.5	1.4
Foreign Currency Gain (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Foreign Currency Cash Flow Hedge Ineffectiveness	$ (3.0)	$ (2.1)	$ (0.3)	$ 1.0