Derivative Financial Instruments (Summary of Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Derivative Instruments Gain Loss [Line Items] | |||
| Amount of Gain (Loss) Recognized in AOCI | $ (2.2) | $ (12.1) | $ 24.9 |
| Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Net of Tax | Other Comprehensive Income (Loss), Net of Tax | Other Comprehensive Income (Loss), Net of Tax |
| Derivatives in Cash Flow Hedging Relationships [Member] | Interest Rate Swap Contracts [Member] | |||
| Derivative Instruments Gain Loss [Line Items] | |||
| Amount of Gain (Loss) Recognized in AOCI | $ 3.3 | $ (0.6) | $ 26.9 |
| Gain reclassified from AOCI into net earnings | $ 5.5 | $ 11.5 | $ 2.0 |