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Securitizations and Variable Interest Entities - Schedule of Carrying Value of Assets and Liabilities of Loans Held for Sale Financing Facility (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] |  |  |
Mortgages Held-for-sale, Fair Value Disclosure | $ 1,290.2 | $ 674.2 |
Receivables, net ($31.9 and $19.9 related to VIEs) | 176.4 | 154.8 |
Restricted cash | 47.1 | 21.2 | $ 43.9
Balance | 16,435.4 | 12,513.7 | $ 12,399.2
Mortgage loan financing facilities ($481.9 and $143.4 related to VIEs) | 1,528.2 | 710.6 |
Total liabilities | 15,942.5 | 12,111.9 |
Variable Interest Entity, Primary Beneficiary |  |  |
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] |  |  |
Receivables, net ($31.9 and $19.9 related to VIEs) | 31.9 | 19.9 |
Mortgage loan financing facilities ($481.9 and $143.4 related to VIEs) | 481.9 | 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 | 375.4 | 119.5 |
Receivables, net ($31.9 and $19.9 related to VIEs) | 31.9 | 19.9 |
Real Estate Owned | 39.4 | 12.5 |
Restricted cash | 13.3 | 6.8 |
Balance | 460.0 | 158.6 |
Mortgage loan financing facilities ($481.9 and $143.4 related to VIEs) | 517.3 | 164.4 |
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net | (35.4) | (21.0) |
Accrued Liabilities and Other Liabilities | 1.7 | 0.5 |
Total liabilities | $ 483.6 | $ 143.8 |

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