INVESTMENT SECURITIES - Additional Information (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) security	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of individual securities that were in a continuous unrealized loss position for less than twelve months | security	44
Number of individual securities that were in a continuous unrealized loss position for greater than twelve months | security	21
Gross proceeds from sales of securities	$ 65,672,000	$ 102,145,000	$ 79,114,000
Impairment charges	0	0	$ 0
Carrying value of investment securities pledged	$ 131,089,000	$ 128,501,000