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Short-Term Debt - Schedule of Outstanding Balances of Short-Term Debt by Type of Collateral Securing Debt (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) facility | Dec. 31, 2022 USD ($) facility
Short-term Debt [Line Items] |  |  |
Short-term debt, net | [1] | $ 1,558,222,000 | $ 2,029,679,000
Non-Recourse BPL Financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 11 | 19
Short-term debt, net |  | $ 1,121,395,000 | $ 1,620,096,000
Servicer advance financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 1 | 1
Short-term debt, net |  | $ 153,653,000 | $ 206,510,000
Limit |  | $ 240,000,000 | $ 290,000,000
Weighted Average Interest Rate |  | 7.71% | 6.67%
Weighted Average Days Until Maturity |  | 337 days | 305 days
Subordinate securities financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 1 |
Short-term debt, net |  | $ 124,552,000 |
Limit |  | $ 0 |
Weighted Average Interest Rate |  | 7.21% |
Weighted Average Days Until Maturity |  | 266 days |
Promissory notes |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt, net |  | $ 16,064,000 | $ 27,058,000
Weighted Average Interest Rate |  | 6.97% | 6.64%
Convertible notes, net |  |  |
Short-term Debt [Line Items] |  |  |
Short-term debt, net |  | $ 142,558,000 | $ 176,015,000
Weighted Average Interest Rate |  | 5.63% | 4.75%
Weighted Average Days Until Maturity |  | 197 days | 227 days
Residential loan warehouse | Non-Recourse BPL Financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 4 | 7
Short-term debt, net |  | $ 796,537,000 | $ 703,406,000
Limit |  | $ 1,150,000,000 | $ 2,550,000,000
Weighted Average Interest Rate |  | 7.27% | 6.16%
Weighted Average Days Until Maturity |  | 202 days | 267 days
Business purpose loan warehouse | Non-Recourse BPL Financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 2 | 4
Short-term debt, net |  | $ 71,719,000 | $ 680,100,000
Limit |  | $ 455,000,000 | $ 1,650,000,000
Weighted Average Interest Rate |  | 8.14% | 6.93%
Weighted Average Days Until Maturity |  | 166 days | 179 days
Real estate securities repo | Non-Recourse BPL Financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 3 | 7
Short-term debt, net |  | $ 82,622,000 | $ 124,909,000
Limit |  | $ 0 | $ 0
Weighted Average Interest Rate |  | 7.01% | 5.22%
Weighted Average Days Until Maturity |  | 26 days | 27 days
Residential MSR warehouse | Non-Recourse BPL Financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 1 |
Short-term debt, net |  | $ 47,858,000 |
Limit |  | $ 50,000,000 |
Weighted Average Interest Rate |  | 8.60% |
Weighted Average Days Until Maturity |  | 302 days |
HEI warehouse | Non-Recourse BPL Financing |  |  |
Short-term Debt [Line Items] |  |  |
Number of Facilities | facility |  | 1 | 1
Short-term debt, net |  | $ 122,659,000 | $ 111,681,000
Limit |  | $ 150,000,000 | $ 150,000,000
Weighted Average Interest Rate |  | 9.89% | 8.54%
Weighted Average Days Until Maturity |  | 214 days | 306 days
[1] | Our consolidated balance sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations of these VIEs and liabilities of consolidated VIEs for which creditors do not have recourse to Redwood Trust, Inc. or its affiliates. At December 31, 2023 and 2022, assets of consolidated VIEs totaled $10,988,885 and $9,257,291, respectively. At December 31, 2023 and 2022, liabilities of consolidated VIEs totaled $10,096,308 and $8,270,276, respectively. See Note 4 for further discussion.

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