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Home Equity Investments (HEI) - Schedule of Components of HEI Income, Net (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Schedule of Equity Method Investments [Line Items] |  |
Total HEI income, net | $ 10,166 | $ 9,086
Interest expense | 244,152 | 180,530
Unsecuritized HEI |  |
Schedule of Equity Method Investments [Line Items] |  |
Total HEI income, net | 7,136 | 6,143
Securitized HEI |  |
Schedule of Equity Method Investments [Line Items] |  |
Total HEI income, net | 11,912 | 15,424
ABS Issued From HEI Securitization |  |
Schedule of Equity Method Investments [Line Items] |  |
Total HEI income, net | (3,769) | (7,409)
Interest expense | 3,000 | 3,000
Net market valuation (losses) recorded on non-controlling interests in HEI securitizations |  |
Schedule of Equity Method Investments [Line Items] |  |
Total HEI income, net | (5,208) | (5,127)
Other |  |
Schedule of Equity Method Investments [Line Items] |  |
Total HEI income, net | $ 95 | $ 55

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