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Home Equity Investments (HEI) - HEI Characteristics (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |
Total HEI income, net | $ 10,651 | $ 10,259 | $ 35,521 | $ 23,445
Interest expense | 223,145 | 156,723 | 603,799 | 461,687
Net market valuation gains recorded on HEI at Redwood |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Total HEI income, net | 5,812 | 9,291 | 23,618 | 21,599
Net market valuation gains recorded on Securitized HEI |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Total HEI income, net | 19,407 | 4,212 | 51,859 | 8,418
ABS Issued From HEI Securitization |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Total HEI income, net | (5,964) | (1,512) | (18,845) | (3,274)
Interest expense | 3,000 | 1,000 | 9,000 | 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 | $ (8,604) | $ (1,732) | $ (21,111) | $ (3,298)

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