Derivatives - Notional and Fair Value Amounts of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Notional Amount	$ 383.1	$ 359.4
Fair Value	18.5	19.0
Bank of America, N.A.
Derivative [Line Items]
Notional Amount	267.8	270.2
Fair Value	13.3	15.5
Credit Suisse International
Derivative [Line Items]
Notional Amount	0.0	0.0
Fair Value	0.0	0.0
Societe Generale
Derivative [Line Items]
Notional Amount	0.0	0.0
Fair Value	0.0	0.0
Barclays Bank PLC
Derivative [Line Items]
Notional Amount	115.3	89.2
Fair Value	5.2	3.5
Citigroup
Derivative [Line Items]
Notional Amount	0.0	0.0
Fair Value	$ 0.0	$ 0.0