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DERIVATIVES FINANCIAL INSTRUMENTS - Narrative (Details)
$ in Millions
Jun. 30, 2020
USD ($)
bank
Dec. 31, 2019
bank
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Cash collateral held by counterparty for derivatives | $ $ 2.3  
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 | bank 2 0
Derivative, notional amount | $ $ 14.2