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Residential Whole Loans (Fair Value Components of Net Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Receivables [Abstract] |  |  |  |
Coupon payments, realized gains and other income received | $ 17,477 | $ 22,202 | $ 54,684 | $ 67,966
Net unrealized gains/(losses) | 58,863 | 13,185 | (13,683) | 33,312
Net gain on transfers to REO | 531 | 4,788 | 3,430 | 15,637
Total | $ 76,871 | $ 40,175 | $ 44,431 | $ 116,915

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