Derivative and Hedging Activities (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ (10.5)	$ (19.0)	$ (35.3)
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	(14.3)	(0.8)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (3.6)	(0.1)
Maximum Length of Time Hedged in Cash Flow Hedge	6 months
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 1.2
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	$ 1.2	$ 0.1