Derivative Financial Instruments (Derivatives and Hedging-Cash Flow Hedges) (Details) - Interest Rate Contract - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in AOCL on  Derivatives	$ 0.0	$ 0.0	$ (9.5)
Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from AOCL into Income	$ (3.5)	$ (3.5)	$ (3.5)