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Short-Term Debt - Collateral for Short-Term Debt Facilities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Short-term Debt [Line Items] |  |
Total Collateral for Short-Term Debt Facilities | $ 1,531,035 | $ 1,855,214
CAFL | Sequoia securities | Short Term Borrowing Agreement |  |
Short-term Debt [Line Items] |  |
Trading securities pledged as collateral | 32,336 | 32,010
Facilities |  |
Short-term Debt [Line Items] |  |
Total real estate securities owned | 114,010 | 122,111
Restricted cash and other assets | 580 | 0
Total Collateral for Short-Term Debt Facilities | 987,497 | 1,439,611
Facilities | On balance sheet |  |
Short-term Debt [Line Items] |  |
On balance sheet | 4,470 | 4,460
Facilities | Sequoia | Sequoia securities | Short Term Borrowing Agreement |  |
Short-term Debt [Line Items] |  |
Trading securities pledged as collateral | 43,653 | 52,333
Facilities | Freddie Mac K-Series | Sequoia securities | Short Term Borrowing Agreement |  |
Short-term Debt [Line Items] |  |
Trading securities pledged as collateral | 33,551 | 33,308
Recourse subordinate securities financing |  |
Short-term Debt [Line Items] |  |
Cash | 313,148 | 175,096
Servicer advance financing |  |
Short-term Debt [Line Items] |  |
Cash | 14,357 | 15,162
Servicer advances | 216,033 | 225,345
Held-for-sale residential consumer loans | Facilities |  |
Short-term Debt [Line Items] |  |
Short term debt, restricted | 507,450 | 907,742
MSRs | Facilities |  |
Short-term Debt [Line Items] |  |
Short term debt, restricted | 84,831 | 76,560
Residential investor loans | Facilities |  |
Short-term Debt [Line Items] |  |
Short term debt, restricted | 40,961 | 95,225
HEI | Facilities |  |
Short-term Debt [Line Items] |  |
Short term debt, restricted | $ 239,665 | $ 237,973

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