CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets
TOTAL ASSETS	$ 1,418,804	$ 1,384,476	$ 1,110,459
Liabilities and stockholders’ equity
Long-term debt	124,445
Total liabilities	1,273,179	1,269,764
Total stockholders’ equity	145,625	114,712	$ 109,438	$ 94,022
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	1,418,804	1,384,476
Parent Company
Assets
Cash	7,699	3,440
Investment in subsidiaries	168,325	142,057
Other assets	4,316	3,012
TOTAL ASSETS	180,340	148,509
Liabilities and stockholders’ equity
Other liabilities	1,191	273
Long-term debt	33,524	33,524
Total liabilities	34,715	33,797
Total stockholders’ equity	145,625	114,712
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 180,340	$ 148,509