INVESTMENT SECURITIES AVAILABLE FOR SALE - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities	$ 337,100	$ 209,000
Available for sale to equity securities recognized loss	333		$ 14
Securities Losses [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale to equity securities recognized loss	$ 281