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DERIVATIVES FINANCIAL INSTRUMENTS - Narrative (Details) $ in Millions | Sep. 30, 2020 USD ($) bank | Dec. 31, 2019 numberOfDerivativeInstruments bank
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Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Cash collateral held by counterparty for derivatives | $ 2.4 |
Interest rate derivative |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Number of derivatives | bank |  | 0
Derivative, notional amount | $ 100.0 |
Interest rate derivative | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Number of derivatives | bank | 2 |
Interest rate derivative | Derivatives not designated as hedging instruments: |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Number of derivatives | numberOfDerivativeInstruments |  | 0
Derivative, notional amount | $ 23.8 |

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