FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 5) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2016	Dec. 31, 2015
OREO
Quantitative information
OREO	$ 2,760	$ 4,929
Loans Receivable \| Non-PCI impaired loans
Quantitative information
Non-PCI impaired loans	82,657	70,462
Significant Unobservable Inputs (Level 3) \| OREO
Quantitative information
OREO	2,760	4,929
Significant Unobservable Inputs (Level 3) \| OREO \| Appraisal
Quantitative information
OREO	$ 2,760	$ 4,929
Selling cost (as a percent)	8.00%	8.00%
Significant Unobservable Inputs (Level 3) \| OREO \| Appraisal \| Weighted Average
Quantitative information
Selling cost (as a percent)	8.00%	8.00%
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans
Quantitative information
Non-PCI impaired loans	$ 82,657	$ 70,462
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Discounted cash flow
Quantitative information
Non-PCI impaired loans	$ 55,097	$ 27,522
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Discounted cash flow \| Minimum
Quantitative information
Discount rate (as a percent)	0.00%	0.00%
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Discounted cash flow \| Maximum
Quantitative information
Discount rate (as a percent)	45.00%	87.00%
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Discounted cash flow \| Weighted Average
Quantitative information
Discount rate (as a percent)	4.00%	30.00%
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Market comparables
Quantitative information
Non-PCI impaired loans	$ 27,560	$ 42,940
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Market comparables \| Minimum
Quantitative information
Discount rate (as a percent)	0.00%	0.00%
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Market comparables \| Maximum
Quantitative information
Discount rate (as a percent)	100.00%	100.00%
Significant Unobservable Inputs (Level 3) \| Loans Receivable \| Non-PCI impaired loans \| Market comparables \| Weighted Average
Quantitative information
Discount rate (as a percent)	2.00%	17.00%

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Glossary Loan
-URI http://asc.fasb.org/extlink&oid=6517073

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