Securities - Securities Pledged to Secure Public Deposits and for Other Purposes (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
---|---|---|
Securities Pledged to Secure Public Deposits and for Other Purposes | ||
Amortized cost of securities pledged to secure public deposits and for other purposes as required or permitted by law or contract | $ 110,874 | $ 135,023 |