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COMMITMENTS AND CONTINGENCIES AND OTHER MATTERS - Fixed Rate Commitments (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Total commitments outstanding | $ 814,908 | $ 728,615
Fixed rate loan commitments outstanding | 5,900 | 20,500
Variable rate loan commitments outstanding | 111,100 | 45,300
Loan commitments outstanding |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Total commitments outstanding | $ 117,044 | $ 65,796

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- Definition 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. + References 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=118260190&loc=d3e13433-108611 + Details
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