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Subsequent Events (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Rithm Capital Corp | Unpaid Principal Balance | Customer Concentration Risk |  |
Subsequent Event [Line Items] |  |
Concentration Risk, Amount | $ 33,000.0 |
Concentration risk (percent) | 10.00% |
Rithm Capital Corp | Loan Count | Customer Concentration Risk |  |
Subsequent Event [Line Items] |  |
Concentration risk (percent) | 20.00% |
Rithm Capital Corp | Delinquent Loans | Customer Concentration Risk |  |
Subsequent Event [Line Items] |  |
Concentration risk (percent) | 55.00% |
Rithm Capital Corp | Servicing And Subservicing Fees Benchmark | Customer Concentration Risk |  |
Subsequent Event [Line Items] |  |
Concentration Risk, Amount | $ 60.2 | $ 73.5
Concentration risk (percent) | 13.00% | 16.00%
Rithm Capital Corp | Pledged MSR Liability Expense Benchmark | Customer Concentration Risk |  |
Subsequent Event [Line Items] |  |
Concentration Risk, Amount | $ 27.6 | $ 27.6
Rithm | 2017 Agreements and New RMSR Agreements | Mortgage Servicing Rights Title Retained |  |
Subsequent Event [Line Items] |  |
UPB of rights to MSRs sold | $ 8,500.0 |

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