COMMITMENTS AND CONTINGENCIES AND OTHER MATTERS - Commitments Outstanding (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Commitments outstanding
Total commitments outstanding	$ 728,615	$ 727,895
Standby letters of credit
Commitments outstanding
Total commitments outstanding	26,047	26,913
Loan commitments outstanding
Commitments outstanding
Total commitments outstanding	65,796	124,284
Unused lines of credit
Commitments outstanding
Total commitments outstanding	$ 636,772	$ 576,698

The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

Name:	us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant