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v3.24.3

INVESTMENT BORROWINGS - NARRATIVE (Details) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2024 USD ($) subsidiary | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Debt Instrument [Line Items] |  |  |
Number of insurance subsidiaries that are members of the FHLB | subsidiary | 3 |  |
Investment borrowings | $ 2,188.9 |  | $ 2,189.3
Interest expense on FHLB borrowings | 94.6 | $ 74.2 |
Federal Home Loan Bank Advances |  |  |
Debt Instrument [Line Items] |  |  |
Federal home loan bank stock | 94.6 |  |
Investment borrowings | 2,188.9 |  |
Federal home loan bank advances, collateral pledged | $ 2,800.0 |  |

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