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Investments in Servicing Related Assets, Geographic Concentration (Details) | Sep. 30, 2025 | Dec. 31, 2024
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Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 100.00% | 100.00%
California [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 14.80% | 14.60%
Virginia [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 8.80% | 8.70%
New York [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 8.50% | 8.40%
Maryland [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 6.80% | 6.70%
Texas [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 5.90% | 5.90%
Florida [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 5.30% | 5.30%
North Carolina [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 5.00% | 5.00%
All Other [Member] |  |
Servicing Related Assets, Geographic Concentration [Abstract] |  |
Outstanding unpaid principal balance | 44.90% | 45.30%

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