CAPITAL RATIOS AND SHAREHOLDERS' EQUITY - Reclassification out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-interest income	$ 8,421	$ 6,167
Tax expense	1,793	1,703
Net of tax	7,721	7,281
Available-for-sale Securities, Gross Realized Gains		146
Available-for-sale Securities, Gross Realized Losses		11
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-interest income	135	0
Tax expense	(32)	0
Net of tax	$ 103	$ 0