NONINTEREST INCOME - Credit/debit card and ATM Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue from Contract with Customer [Abstract]
Bailment fees	$ 6,093	$ 4,703
Interchange fees	3,460	3,198
Other card and ATM fees	252	230
Total credit/debit card and ATM income	$ 9,805	$ 8,131