CREDIT QUALITY ASSESSMENT (Credit Quality of Loan Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	$ 33,512	$ 27,235
Non-accrual loans	34,312	33,583
Loans aquired with deteriorated credit quality	13,602	25,947
Current loans	6,469,817	6,484,869
Total loans	6,551,243	6,571,634
Commercial
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	5,813	2,786
Non-accrual loans	7,083	7,086
Loans aquired with deteriorated credit quality	2,711	8,155
Current loans	756,551	778,237
Total loans	772,158	796,264
Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,713	5,567
Non-accrual loans	4,439	4,107
Loans aquired with deteriorated credit quality	1,108	1,272
Current loans	480,916	506,893
Total loans	489,176	517,839
Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	3,790	474
Non-accrual loans	1,990	3,306
Loans aquired with deteriorated credit quality	0	0
Current loans	652,929	677,421
Total loans	658,709	681,201
Commercial Real Estate Portfolio Segment \| Commercial Investor Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	3,661	3,830
Non-accrual loans	6,409	5,355
Loans aquired with deteriorated credit quality	9,774	14,328
Current loans	1,974,183	1,934,882
Total loans	1,994,027	1,958,395
Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	1,096	433
Non-accrual loans	3,766	4,234
Loans aquired with deteriorated credit quality	0	2,182
Current loans	1,220,124	1,196,054
Total loans	1,224,986	1,202,903
Residential Real Estate Portfolio Segment \| Residential Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	13,576	10,919
Non-accrual loans	10,625	9,336
Loans aquired with deteriorated credit quality	9	10
Current loans	1,216,871	1,207,982
Total loans	1,241,081	1,228,247
Residential Real Estate Portfolio Segment \| Residential Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,863	3,226
Non-accrual loans	0	159
Loans aquired with deteriorated credit quality	0	0
Current loans	168,243	183,400
Total loans	171,106	186,785
31-60 days
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	24,182	21,963
31-60 days \| Commercial
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,855	2,737
31-60 days \| Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	1,513	3,871
31-60 days \| Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	3,790	474
31-60 days \| Commercial Real Estate Portfolio Segment \| Commercial Investor Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,244	3,041
31-60 days \| Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	385	433
31-60 days \| Residential Real Estate Portfolio Segment \| Residential Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	11,009	8,181
31-60 days \| Residential Real Estate Portfolio Segment \| Residential Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,386	3,226
61-90 days
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	8,082	4,783
61-90 days \| Commercial
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,958	0
61-90 days \| Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	1,200	1,477
61-90 days \| Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	0	0
61-90 days \| Commercial Real Estate Portfolio Segment \| Commercial Investor Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	169	789
61-90 days \| Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	711	0
61-90 days \| Residential Real Estate Portfolio Segment \| Residential Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	2,567	2,517
61-90 days \| Residential Real Estate Portfolio Segment \| Residential Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	477	0
> 90 days
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	1,248	489
> 90 days \| Commercial
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	0	49
> 90 days \| Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	0	219
> 90 days \| Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	0	0
> 90 days \| Commercial Real Estate Portfolio Segment \| Commercial Investor Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	1,248	0
> 90 days \| Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	0	0
> 90 days \| Residential Real Estate Portfolio Segment \| Residential Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	0	221
> 90 days \| Residential Real Estate Portfolio Segment \| Residential Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due	$ 0	$ 0

Loans And Leases Receivable, Current

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The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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