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v3.20.4

Net Interest Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Total interest income | $ 46,220 | $ 45,358 | $ 47,970 | $ 210,613 | $ 199,772 | $ 179,602 | $ 167,258 | $ 147,982 | $ 350,161 | $ 694,614 | $ 455,799
Derivatives |  |  |  |  |  |  |  |  | 868 | 711 | 831
Interest expense | 20,264 | 19,829 | 19,444 | 163,531 | 155,773 | 147,631 | 141,567 | 121,779 | 223,068 | 566,750 | 377,071
Total net interest income | $ 25,956 | $ 25,529 | $ 28,526 | $ 47,082 | $ 43,999 | $ 31,971 | $ 25,691 | $ 26,203 | 127,093 | 127,864 | 78,728
Convertible notes |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 10,997 | 10,813 | 10,643
Subordinated debentures |  |  |  |  |  |  |  |  |  |  |
Subordinated debentures |  |  |  |  |  |  |  |  | 2,187 | 2,865 | 2,743
VIE, Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Total net interest income |  |  |  |  |  |  |  |  |  | 1,819 |
Residential Loans |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 69,170 | 63,031 | 19,659
Consolidated SLST | VIE, Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 45,194 | 4,764 | 0
Interest expense |  |  |  |  |  |  |  |  | 31,663 | 2,945 | 0
Residential loans held in securitization trusts |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 12,612 | 3,222 | 8,910
Total residential loans |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 126,976 | 71,017 | 28,569
Preferred equity and mezzanine loan investments |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 20,899 | 20,899 | 21,036
Consolidated K-Series | VIE, Primary Beneficiary |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 151,841 | 535,226 | 358,712
Interest expense |  |  |  |  |  |  |  |  | 129,762 | 457,130 | 313,102
Total multi-family loans |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 172,740 | 556,125 | 379,748
Investment securities available for sale |  |  |  |  |  |  |  |  |  |  |
Investment securities available for sale |  |  |  |  |  |  |  |  | 49,925 | 65,486 | 47,147
Other |  |  |  |  |  |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  | 520 | 1,986 | 335
Repurchase agreements |  |  |  |  |  |  |  |  |  |  |
Repurchase agreements and other interest bearing liabilities |  |  |  |  |  |  |  |  | 37,334 | 90,110 | 43,219
Residential loan securitizations |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 6,967 | 1,682 | 3,623
Non-Agency RMBS and CMBS re-securitizations |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 3,290 | 494 | 2,910
Total collateralized debt obligations |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | $ 171,682 | $ 462,251 | $ 319,635

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