CREDIT QUALITY ASSESSMENT (Impaired Loans by Portfolio) (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2016	Dec. 31, 2015
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	$ 26,955	$ 29,828
Contractual interest income due on impaired loans during the period	1,793	2,527
Interest income on impaired loans recognized on a cash basis	709	961
Interest income on impaired loans recognized on an accrual basis	153	274
Commercial
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	5,303	4,714
Contractual interest income due on impaired loans during the period	418	450
Interest income on impaired loans recognized on a cash basis	114	273
Interest income on impaired loans recognized on an accrual basis	93	113
All Other
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	4,866	4,869
Contractual interest income due on impaired loans during the period	217	208
Interest income on impaired loans recognized on a cash basis	104	104
Interest income on impaired loans recognized on an accrual basis	32	43
Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	154	882
Contractual interest income due on impaired loans during the period	219	304
Interest income on impaired loans recognized on a cash basis	0	11
Interest income on impaired loans recognized on an accrual basis	0	0
Commercial Real Estate Portfolio Segment \| Commercial Investor Real Estate
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	9,823	11,145
Contractual interest income due on impaired loans during the period	578	918
Interest income on impaired loans recognized on a cash basis	20	226
Interest income on impaired loans recognized on an accrual basis	0	107
Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	6,809	8,218
Contractual interest income due on impaired loans during the period	361	647
Interest income on impaired loans recognized on a cash basis	471	347
Interest income on impaired loans recognized on an accrual basis	$ 28	$ 11

Loans and Leases Receivable, Impaired, Contractual Interest Income

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- Definition

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+ References

No definition available.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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+ References

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