CREDIT QUALITY ASSESSMENT (Recorded Investment with Respect to Impaired loans, Associated Allowance by Applicable Portfolio Segment and Principal Balance of Impaired Loans prior to Amounts Charged-off) (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	$ 12,018	$ 14,208
Impaired loans without a specific allowance	13,102	14,719
Impaired loans	25,120	28,927
Impaired Financing Receivable, Related Allowance	3,778	3,375
Unpaid principal balance in total impaired loans	39,362	42,461
Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	10,453	12,536
Impaired loans without a specific allowance	3,832	5,035
Impaired loans	14,285	17,571
Restructuring | Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	841	876
Impaired loans without a specific allowance	2,579	3,591
Impaired loans	3,420	4,467
Restructuring | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	724	796
Impaired loans without a specific allowance	6,691	6,093
Impaired loans	7,415	6,889
Commercial
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	2,485	2,200
Impaired loans without a specific allowance	3,032	3,073
Impaired loans	5,517	5,273
Impaired Financing Receivable, Related Allowance	1,951	1,318
Unpaid principal balance in total impaired loans	7,791	7,158
Commercial | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	1,559	1,168
Impaired loans without a specific allowance	1,189	974
Impaired loans	2,748	2,142
Commercial | Restructuring | Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	841	876
Impaired loans without a specific allowance	413	701
Impaired loans	1,254	1,577
Commercial | Restructuring | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	85	156
Impaired loans without a specific allowance	1,430	1,398
Impaired loans	1,515	1,554
All Other
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	3,322	6,439
Impaired loans	3,322	6,439
Impaired Financing Receivable, Related Allowance	0	0
Unpaid principal balance in total impaired loans	4,001	7,154
All Other | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	0	2,750
Impaired loans	0	2,750
All Other | Restructuring | Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	568	577
Impaired loans	568	577
All Other | Restructuring | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	2,754	3,112
Impaired loans	2,754	3,112
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	58
Impaired loans without a specific allowance	137	136
Impaired loans	137	194
Impaired Financing Receivable, Related Allowance	0	58
Unpaid principal balance in total impaired loans	4,398	4,456
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	58
Impaired loans without a specific allowance	0	0
Impaired loans	0	58
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction | Restructuring | Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	0	0
Impaired loans	0	0
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction | Restructuring | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	137	136
Impaired loans	137	136
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	7,161	7,791
Impaired loans without a specific allowance	2,559	2,650
Impaired loans	9,720	10,441
Impaired Financing Receivable, Related Allowance	1,274	1,489
Unpaid principal balance in total impaired loans	14,387	15,138
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	7,161	7,791
Impaired loans without a specific allowance	658	518
Impaired loans	7,819	8,309
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate | Restructuring | Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	852	2,073
Impaired loans	852	2,073
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate | Restructuring | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	1,049	59
Impaired loans	1,049	59
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	2,372	4,159
Impaired loans without a specific allowance	4,052	2,421
Impaired loans	6,424	6,580
Impaired Financing Receivable, Related Allowance	553	510
Unpaid principal balance in total impaired loans	8,785	8,555
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	1,733	3,519
Impaired loans without a specific allowance	1,985	793
Impaired loans	3,718	4,312
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate | Restructuring | Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	0	0
Impaired loans without a specific allowance	746	240
Impaired loans	746	240
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate | Restructuring | Non Accrual Loans
Financing Receivable Impaired [Line Items]
Impaired loans with a specific allowance	639	640
Impaired loans without a specific allowance	1,321	1,388
Impaired loans	$ 1,960	$ 2,028