Real Estate Securities - Activity of Credit Component of Other-than-Temporary Impairments (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Activity of the Credit Component of Other-than-Temporary Impairments | ||||
| Balance at beginning of period | $ 28,198 | $ 32,696 | $ 28,277 | $ 33,849 |
| Initial credit impairments | 0 | 226 | 291 | 226 |
| Securities sold, or expected to sell | 0 | 0 | (261) | (348) |
| Securities with no outstanding principal at period end | 0 | (446) | (109) | (1,251) |
| Balance at End of Period | $ 28,198 | $ 32,476 | $ 28,198 | $ 32,476 |