Derivative Financial Instruments (Narrative) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Statement of Financial Position [Abstract]
Loss on cash flow hedge included in AOCI(L) upon termination	$ 26.5
Loss on cash flow hedge included in AOCI(L) upon termination, after tax	20.1
Remaining unamortized balance of loss included in AOCI(L)	22.2
Remaining unamortized balance of loss included in AOCI(L), after tax	$ 16.9