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Derivative Instruments and Hedging Activities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	$ (0.2)	$ (0.3)	$ (0.4)	$ (0.5)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	17.9	$ 10.7	17.9	$ 10.7	$ 10.2		$ 11.0	$ 11.2
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(0.2)
Cash Flow Hedging
Derivative [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	7.9		7.9
Interest Rate Contract [Member]
Derivative [Line Items]
Portion expected to be reclassified to earnings in the next twelve months	$ (1.0)		$ (1.0)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax						$ 10.4