CREDIT QUALITY ASSESSMENT (Impaired Loans by Portfolio) (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	$ 23,985	$ 26,382
Contractual interest income due on impaired loans during the period	625	2,082
Interest income on impaired loans recognized on a cash basis	281	511
Interest income on impaired loans recognized on an accrual basis	70	186
Commercial
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	7,015	5,646
Contractual interest income due on impaired loans during the period	191	570
Interest income on impaired loans recognized on a cash basis	93	153
Interest income on impaired loans recognized on an accrual basis	51	107
All Other
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	3,086	4,545
Contractual interest income due on impaired loans during the period	31	190
Interest income on impaired loans recognized on a cash basis	104	49
Interest income on impaired loans recognized on an accrual basis	10	42
Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	137	150
Contractual interest income due on impaired loans during the period	77	294
Interest income on impaired loans recognized on a cash basis	0	0
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	8,039	9,480
Contractual interest income due on impaired loans during the period	176	718
Interest income on impaired loans recognized on a cash basis	10	43
Interest income on impaired loans recognized on an accrual basis	0	0
Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Impaired [Line Items]
Average impaired loans for the period	5,708	6,561
Contractual interest income due on impaired loans during the period	150	310
Interest income on impaired loans recognized on a cash basis	74	266
Interest income on impaired loans recognized on an accrual basis	$ 9	$ 37

Loans and Leases Receivable, Impaired, Contractual Interest Income

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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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