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Investments in Limited Partnerships (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) item | Dec. 31, 2023 USD ($) item | Dec. 31, 2022 USD ($)
Investments in Limited Partnerships |  |  |
Number of investments in affordable housing partnerships | item | 23 | 22 |
Investments in affordable housing partnerships carrying value, net | $ 98.8 | $ 66.3 |
Federal affordable housing tax credits | 106.1 |  |
Expected amortization of investments in affordable housing partnerships | 95.7 |  |
Usage of federal affordable housing tax credits | 11.4 | 7.7 | $ 4.9
Actual amortization of investments in affordable housing partnerships | $ 10.2 | $ 7.2 | $ 4.4

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- Definition Represents the monetary amount of Expected Amortization of Investments in Affordable Housing Partnerships, as of the indicated date. + References No definition available. + Details
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