CREDIT QUALITY ASSESSMENT (Credit Quality of Loan Portfolio by Segment) (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	$ 29,211	$ 30,031
Loans and leases 90 days past due	232	0
Restructured loans and leases	2,489	4,467
Total non-performing loans and leases	31,932	34,498
Other real estate owned	1,911	2,742
Total non-performing assets	33,843	37,240
Commercial
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	5,833	3,696
Loans and leases 90 days past due	0	0
Restructured loans and leases	1,185	1,577
Total non-performing loans and leases	7,018	5,273
Other real estate owned	39	39
Total non-performing assets	7,057	5,312
Consumer
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	2,859	2,193
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	2,859	2,193
Other real estate owned	0	690
Total non-performing assets	2,859	2,883
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	137	194
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	137	194
Other real estate owned	365	365
Total non-performing assets	502	559
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	8,107	8,368
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	2,073
Total non-performing loans and leases	8,107	10,441
Other real estate owned	395	433
Total non-performing assets	8,502	10,874
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	4,823	6,340
Loans and leases 90 days past due	0	0
Restructured loans and leases	744	240
Total non-performing loans and leases	5,567	6,580
Other real estate owned	637	0
Total non-performing assets	6,204	6,580
Residential Real Estate Portfolio Segment | Residential Mortgage
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	7,257	8,822
Loans and leases 90 days past due	232	0
Restructured loans and leases	560	577
Total non-performing loans and leases	8,049	9,399
Other real estate owned	475	1,215
Total non-performing assets	8,524	10,614
Residential Real Estate Portfolio Segment | Residential Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	195	418
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	195	418
Other real estate owned	0	0
Total non-performing assets	$ 195	$ 418