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v3.25.1

Investment in Equity Method Investee and Related Party Transactions (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |
Other financing liabilities, at fair value ($317.2 and $322.7 due to related party) | $ 835.5 |  | $ 846.9 |
MSRs, at fair value | 2,547.4 |  | 2,466.3 | $ 2,272.2
Financing Liability Mortgage Servicing Rights Pledged [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Other financing liabilities, at fair value ($317.2 and $322.7 due to related party) | $ 579.1 |  | 583.5 |
MAV Canopy HoldCo I, LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Ownership percentage | 15.00% |  |  |
MAV MSR Sale Agreements | Financing Liability Mortgage Servicing Rights Pledged [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Other financing liabilities, at fair value ($317.2 and $322.7 due to related party) | $ 317.2 |  | 322.7 |
Joint Marketing Agreement and Recapture Agreement |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
UPB of MSRs sold | 25.8 | $ 18.0 |  |
MAV Transferred MSRs |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
MSRs, at fair value | 325.7 |  | $ 330.6 |
MSR Asset Vehicle LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Unpaid principal balance of loans subserviced | 40,500.0 |  |  |
MSR Asset Vehicle LLC | Mortgage Servicing Rights Title Transferred |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
UPB of rights to MSRs sold | $ 21,100.0 |  |  |

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