INVESTMENT SECURITIES - Schedules of Proceeds from Sale of Investment Securities (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Proceeds from sale | $ 7,021 | $ 63,488 | $ 7,021 | $ 82,537 |
| Gross gains | 35 | 35 | ||
| Gross gains | 27 | 275 | ||
| Gross losses | $ (20) | $ (20) | ||
| Gross losses | $ 0 | $ (33) | ||