SECURITIES (Securities Pledged) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Pledged Financial Instruments, Not Separately Reported, Securities [Abstract]
State and local governments public deposits, carrying value	$ 143,336
Interest rate swap counterparties, carrying value	11,356
Repurchase transaction accounts, carrying value	154,042
Other, carrying value	3,827
Total pledged securities, carrying value	312,561
State and local governments public deposits, amortized cost	143,505
Interest rate swap counterparties, amortized cost	11,576
Repurchase transaction accounts, amortized cost	155,014
Other, amortized cost	3,827
Total pledged securities, amortized cost	313,922
State and local governments public deposits, fair value	143,887
Interest rate swap counterparties, fair value	11,344
Repurchase transaction accounts, fair value	154,042
Other, fair value	3,719
Total pledged securities, fair value	$ 312,992