LOANS HELD FOR SALE - Additional Information (Details) - Commercial Portfolio Segment [Member] - Nonperforming Financing Receivable [Member] - Loans held for sale sold [Member] $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Loans sales	$ 4.8
Mortgage Receivable [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans sales	3.7
Commercial And Industrial Sector [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans sales	$ 1.1

The amount of any significant sales of financing receivables during the reporting period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Name:	us-gaap_FinancingReceivableSignificantSales
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration