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Securitizations and Variable Interest Entities - Schedule Of Securitization Reverse Mortgage Loans Buyouts And Financing Liabilities (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023
--- | --- | --- | ---
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] |  |  |
Receivables, net | $ 153.4 | $ 154.8 |
Debt service accounts | 27.0 |  | $ 71.2
Mortgage loan financing facilities, net ($280.1 and $143.4 related to VIEs) | 1,190.5 | 710.6 |
Liabilities | 12,638.4 | 12,111.9 |
Other restricted cash | 19.3 |  | $ 47.9
Total Assets | 13,084.7 | 12,513.7 |
Variable Interest Entity, Primary Beneficiary |  |  |
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] |  |  |
Receivables, net | 33.1 | 19.9 |
Mortgage loan financing facilities, net ($280.1 and $143.4 related to VIEs) | 280.1 | 143.4 |
Variable Interest Entity, Primary Beneficiary | Warehouse Mortgage Loan Financing Facility |  |  |
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] |  |  |
Mortgages Held-for-sale, Fair Value Disclosure | 228.7 | 119.5 |
Receivables, net | 33.1 | 19.9 |
Real estate owned | 17.9 | 12.5 |
Mortgage loan financing facilities, net ($280.1 and $143.4 related to VIEs) | 314.0 | 164.4 |
Unamortized discount and debt issuance costs | (33.9) | (21.0) |
Accrued expenses (Other liabilities) | 0.9 | 0.5 |
Liabilities | 281.0 | 143.8 |
Other restricted cash | 10.2 | 6.8 |
Total Assets | 290.0 | 158.6 |
Variable Interest Entity, Primary Beneficiary | Mortgage Warehouse Agreement |  |  |
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] |  |  |
Mortgages Held-for-sale, Fair Value Disclosure | $ 200.1 | $ 150.1 |

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