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Other Financing Liabilities, at Fair Value - Schedule of MSR Liabilities (Details) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2024
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | $ 900.0 | $ 900.0 | $ 846.9
Financing Liability Excess Servicing Spread |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | 248.9 | 248.9 | 263.3
ESS Financing Liability |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | 645.5 | 645.5 | 583.5
Financing Liabilities | Residential Asset Securitization Trust 2003-A11 (RAST 2003-A11) |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | 5.6 | 5.6 | 0.0
NRZ | UPBs Related to PLS MSRs |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
UPB of MSRs sold | 33,400.0 |  |
NRZ | Original Rights to MSRs Agreements | Financing Liabilities |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | 121.0 | 121.0 | 115.1
MAV Asset Vehicle LLC |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
UPB of MSRs sold |  | 2,300.0 |
MAV Asset Vehicle LLC | MAV MSR Sale Agreements | Financing Liabilities |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | 409.2 | 409.2 | 322.7
Other counterparties for Pledged MSR liab. | Financing Liabilities |  |  |
Servicing Liabilities at Fair Value [Line Items] |  |  |
Other financing liabilities, at fair value ($322.7 and $409.2 due to related party) ($0.0 and $5.6 related to VIEs) | $ 115.3 | $ 115.3 | $ 145.8

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