CREDIT QUALITY ASSESSMENT (Summary of Impaired Loans) (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Credit Quality Assessment [Abstract]
Impaired loans with a specific allowance	$ 14,189	$ 13,563
Impaired loans without a specific allowance	9,689	10,529
Total impaired loans	23,878	24,092
Allowance for loan and lease losses related to impaired loans	5,318	4,825
Allowance for loan and lease losses related to loans collectively evaluated	38,543	39,242
Total allowance for loan and lease losses	43,861	44,067
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

No definition available.

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Loans and Leases Receivable, Impaired, Contractual Interest Income

+ References

No definition available.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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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)
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-Publisher FASB
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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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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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