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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Amount of Gain (Loss) recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income | $ (2,039) | $ (1,732)
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | (283) | (64)
Amount of Gain (Loss) Recognized in Income | (283) | (64)
Loss reclassification from AOCI to Earnings expected over the next 12 months | 390 |
Designated as hedging instrument | Cash flow hedges |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income | 774 | (3,945)
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | (180) | (1)
Amount of Gain (Loss) Recognized in Income | (180) | (1)
Designated as hedging instrument | Cash flow hedges | Interest rate swap on deposits |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income | 987 | (3,945)
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | (188) | (1)
Amount of Gain (Loss) Recognized in Income | (188) | (1)
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income | (213) |
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | 8 |
Amount of Gain (Loss) Recognized in Income | 8 |
Designated as hedging instrument | Fair value hedges |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income | (2,813) | 2,213
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | (137) | (18)
Amount of Gain (Loss) Recognized in Income | (137) | (18)
Designated as hedging instrument | Fair value hedges | Interest rate swap on deposits |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income | (2,813) | 2,213
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | (137) | (18)
Amount of Gain (Loss) Recognized in Income | (137) | (18)
Designated as hedging instrument | Economic hedges |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | 10 | (11)
Amount of Gain (Loss) Recognized in Income | 10 | (11)
Designated as hedging instrument | Economic hedges | Forward sale commitments |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | 10 | (11)
Amount of Gain (Loss) Recognized in Income | 10 | (11)
Not designated as hedging instrument |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | 24 | (34)
Amount of Gain (Loss) Recognized in Income | 24 | (34)
Not designated as hedging instrument | Interest rate lock commitments |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Reclassified from Other Comprehensive Income | 24 | (34)
Amount of Gain (Loss) Recognized in Income | $ 24 | $ (34)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80845-113994 + Details
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