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v3.25.1

MSR Valuation Allowance, Net (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Assets that Continue to be Recognized, Securitized or Asset-Backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |  |
MSRs, at fair value | $ 2,547.4 |  | $ 2,466.3 | $ 2,272.2
Servicing Asset at Fair Value, Period Increase (Decrease) | (77.8) |  |  |
Derivative, Gain (Loss) on Derivative, Net | (8.6) | $ 49.3 |  |
MSR valuation adjustments, net | (38.9) | (11.6) |  |
Total MSR Reserve Fair Value Gains (Losses) | (77.8) | 42.0 |  |
Other financing liabilities, at fair value ($317.2 and $322.7 due to related party) | 835.5 |  | 846.9 |
MSR |  |  |  |
Assets that Continue to be Recognized, Securitized or Asset-Backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |  |
MSRs, at fair value | 2,500.0 |  |  |
Servicing Asset at Fair Value, Change In Fair Value Due To Realization Of Expected Cash Flows | (41.1) | (39.9) |  |
Asset at Fair Value, Changes in Fair Value Resulting from Changes in Assumptions | 2.2 | 28.3 |  |
Financing Liability Excess Servicing Spread [Member] |  |  |  |
Assets that Continue to be Recognized, Securitized or Asset-Backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |  |
Other financing liabilities, at fair value ($317.2 and $322.7 due to related party) | 256.4 |  | $ 263.3 |
Financing Liability Mortgage Servicing Rights Pledged [Member] |  |  |  |
Assets that Continue to be Recognized, Securitized or Asset-Backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |  |
Fair Valu Change in Pledged MSR Liabilities, Liabliity Fair Value | 579.1 |  |  |
Derivative, Gain (Loss) on Derivative, Net | 20.8 | (53.7) |  |
Pledged MSR Liabilities |  |  |  |
Assets that Continue to be Recognized, Securitized or Asset-Backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |  |
Servicing Asset at Fair Value, Period Increase (Decrease) | (11.1) | (4.7) |  |
ESS Financing Liabilities |  |  |  |
Assets that Continue to be Recognized, Securitized or Asset-Backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |  |  |  |
Total Fair value changes in Servicing liability at fair value | $ 7.0 | $ (4.5) |  |

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