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Commitments - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
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 | $ 3,000.0 | $ 3,100.0
Funded amount in connection with reverse mortgage loans | 76.8 |
Forward Mortgage Loan Interest Rate Lock Commitments |  |
Other Commitments [Line Items] |  |
Short-term commitments to lend | 1,600.0 |
Reverse loans IRLCs |  |
Other Commitments [Line Items] |  |
Short-term commitments to lend | $ 38.3 |
Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Mortgage Loans, Right To Transfer, Percentage | 15.00% |
Unpaid Principal Balance, Transfers Out | $ 5,700.0 |
Unpaid Principal Balance, Amount Expected to Deboard | $ 1,900.0 |
Customer Concentration Risk | Servicing And Subservicing Fees Benchmark | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 14.00% |
Concentration Risk, Amount | $ 22.2 |
Customer Concentration Risk | Unpaid Principal Balance | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 11.00% |
Concentration Risk, Amount | $ 34,700.0 |
Customer Concentration Risk | Loan Count | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 21.00% |
Customer Concentration Risk | Delinquent Loans | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration risk (percent) | 58.00% |
Customer Concentration Risk | Pledged MSR Liability Expense Benchmark | Rithm Capital Corp |  |
Other Commitments [Line Items] |  |
Concentration Risk, Amount | $ 9.0 |

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