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Commitments - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 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 | $ 1,800.0
Funded amount in connection with reverse mortgage loans |  | 119.5 |
Forward Mortgage Loan Interest Rate Lock Commitments |  |  |
Other Commitments [Line Items] |  |  |
Short-term commitments to lend | 1,500.0 | 1,500.0 |
Reverse loans IRLCs |  |  |
Other Commitments [Line Items] |  |  |
Short-term commitments to lend | 22.2 | $ 22.2 |
Customer Concentration Risk | Servicing And Subservicing Fees Benchmark | Rithm |  |  |
Other Commitments [Line Items] |  |  |
Concentration risk (percent) |  | 16.00% |
Concentration Risk, Amount | $ 49.5 |  |
Customer Concentration Risk | Servicing And Subservicing Fees Benchmark | MAV Asset Vehicle LLC |  |  |
Other Commitments [Line Items] |  |  |
Concentration risk (percent) |  | 13.00% |
Concentration Risk, Amount |  | $ 39.6 |
Customer Concentration Risk | Unpaid Principal Balance | Rithm Capital Corp |  |  |
Other Commitments [Line Items] |  |  |
Concentration risk (percent) |  | 14.00% |
Customer Concentration Risk | Unpaid Principal Balance | MAV Asset Vehicle LLC |  |  |
Other Commitments [Line Items] |  |  |
Concentration risk (percent) |  | 17.00% |
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) |  | 64.00% |
Customer Concentration Risk | Servicing and Subservicing Portfolio Benchmark | MAV Asset Vehicle LLC |  |  |
Other Commitments [Line Items] |  |  |
Concentration Risk, Amount |  | $ 52,900.0 |

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