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Other Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2018
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Other Assets [Abstract] |  |  |  |  |  |
REO | $ 298,866 | $ 348,516 | $ 411,659 | $ 376,200 | $ 334,069 | $ 249,413
Capital contributions made to loan origination partners | 108,887 |  | 147,992 |  |  |
Other interest-earning assets | 45,442 |  | 70,468 |  |  |
Interest receivable | 42,723 |  | 70,986 |  |  |
Other MBS and loan related receivables | 36,342 |  | 43,842 |  |  |
Other | 39,354 |  | 39,304 |  |  |
Total Other Assets | 571,614 |  | 784,251 |  |  |
Real estate held-for-investment | $ 59,300 |  | $ 27,300 |  |  |

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