LOANS HELD FOR SALE - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Accounts Notes And Loans Receivable [Line Items]
Loans held for sale	$ 27,576		$ 50,006
Transfer Of Loans Held For Sale To Portfolio Loans 1	10,289	$ 1,321
Non Accrual [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans held for sale	$ 8,300		$ 8,100

Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration