NONINTEREST INCOME AND EXPENSES - Summary of Noninterest Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Noninterest income
Service charges on deposits	$ 2,435	$ 2,230	$ 4,857	$ 4,359
Trust income	917	838	1,797	1,644
Mortgage banking fees	1,272	1,364	2,824	2,363
Brokerage commissions and fees	351	470	728	1,101
Marine finance fees	326	279	460	420
Interchange income	2,671	2,370	5,165	4,587
Other deposit-based EFT fees	114	116	254	243
BOLI income	757	379	1,490	1,220
Other income	1,624	1,065	2,797	1,804
Noninterest Income	10,467	9,111	20,372	17,741
Securities gains, net	21	47	21	136
TOTAL	10,488	9,158	20,393	17,877
Noninterest expense
Salaries and wages	18,375	13,884	33,744	27,283
Employee benefits	2,935	2,521	6,003	5,003
Outsourced data processing costs	3,456	2,803	6,725	7,242
Telephone/data lines	648	539	1,180	1,067
Occupancy	4,421	3,645	7,578	6,617
Furniture and equipment	1,679	1,283	3,070	2,281
Marketing	1,074	957	1,996	2,006
Legal and professional fees	3,276	2,656	5,408	5,013
FDIC assessments	650	643	1,220	1,187
Amortization of intangibles	839	593	1,558	1,039
Asset dispositions expense	136	160	189	250
Net loss (gain) on other real estate owned and repossessed assets	161	(201)	(185)	(252)
Early redemption cost for Federal Home Loan Bank borrowings	0	1,777	0	1,777
Other	3,975	3,548	7,885	6,636
TOTAL	$ 41,625	$ 34,808	$ 76,371	$ 67,149