SECURITIES - Schedule of Available For Sale Securities By Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Maturities of Available-for-sale Debt Securities [Abstract]
Amortized Cost, Due in one year or less	$ 3,924
Amortized Cost, Due after one year through five years	15,371
Amortized Cost, Due after five years through ten years	27,257
Amortized Cost, Due after ten years	225,653
Amortized Cost, Available for sale securities with maturities amortized cost	272,205
Amortized Cost, Mortgage-backed securities	321,677
Amortized Cost, Total debt securities	593,882	$ 591,009
Fair Value, Due in one year or less	3,946
Fair Value, Due after one year through five years	15,741
Fair Value, Due after five years through ten years	28,584
Fair Value, Due after ten years	240,970
Fair Value, Available for sale securities with maturities fair value	289,241
Fair Value, Mortgage-backed securities	335,084
Fair Value, Total debt securities	$ 624,325	$ 608,233