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Other Assets - Schedule of Components of Other Assets (Parenthetical) (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Massachusetts Healthcare |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Equity method interest in joint venture | $ 159.7 |
Real Estate Owned, Held for Investment |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Other Real Estate | $ 8.4 | $ 4.6

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