Variable Interest Entities (VIE) (Investment in LIHTC Partnership) (Details) - USD ($) $ in Thousands |
Jun. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Variable Interest Entities (VIE) [Abstract] | ||
| Investment (Other Assets) | $ 2,216 | $ 2,562 |
| Maximum exposure to loss | $ 2,216 | $ 2,562 |