CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Total assets	$ 1,384,476	$ 1,110,459	$ 987,060
Liabilities
Long-term debt	216,722
Total Liabilities	1,269,764	1,001,021
Total Stockholders' Equity	114,712	109,438	$ 94,022	$ 67,549
Total liabilities and stockholders’ equity	1,384,476	1,110,459
Parent Company
Assets
Cash	3,440	5,528
Investment in subsidiaries	145,114	138,399
Other assets	2,887	2,210
Total assets	151,441	146,137
Liabilities
Other liabilities	272	533
Long-term debt	33,524	33,524
Total Liabilities	33,796	34,057
Total Stockholders' Equity	117,645	112,080
Total liabilities and stockholders’ equity	$ 151,441	$ 146,137