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Commitments - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Other Commitments [Line Items] |  |
Threshold of outstanding principal balance on maximum claim amount (as a percent) | 98.00% |
Floating Rate Reverse Mortgage Loans |  |
Other Commitments [Line Items] |  |
Additional borrowing capacity to borrowers | $ 1,800.0 | $ 1,800.0
Funded amount in connection with reverse mortgage loans | 59.5 |
Forward Mortgage Loan Interest Rate Lock Commitments |  |
Other Commitments [Line Items] |  |
Short-term commitments to lend | 1,200.0 |
Reverse loans IRLCs |  |
Other Commitments [Line Items] |  |
Short-term commitments to lend | $ 25.5 |
Customer Concentration Risk | Servicing And Subservicing Fees Benchmark | Rithm |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 16.00% |
Concentration Risk, Amount | $ 24.9 |
Customer Concentration Risk | Servicing And Subservicing Fees Benchmark | MAV Asset Vehicle LLC |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 13.00% |
Concentration Risk, Amount | $ 20.0 |
Customer Concentration Risk | Unpaid Principal Balance | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 15.00% |
Customer Concentration Risk | Unpaid Principal Balance | MAV Asset Vehicle LLC |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 18.00% |
Customer Concentration Risk | Loan Count | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 25.00% |
Customer Concentration Risk | Loan Count | MAV Asset Vehicle LLC |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 14.00% |
Customer Concentration Risk | Delinquent Loans | Rithm |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 66.00% |
Customer Concentration Risk | Servicing and Subservicing Portfolio Benchmark | MAV Asset Vehicle LLC |  |
Other Commitments [Line Items] |  |
Concentration Risk, Amount | $ 53,400.0 |

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