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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Derivative [Line Items] |  |
Notional Amount | $ 672,077 | $ 580,372
Estimated Fair Value Asset (Liability) | (3,079) | (743)
Interest rate swap |  |
Derivative [Line Items] |  |
Notional Amount |  | 50,000
Designated as hedging instrument | Cash flow hedges |  |
Derivative [Line Items] |  |
Notional Amount | $ 100,000 | 100,000
Weighted Average Maturity (in years) | 4 years 3 months 18 days |
Estimated Fair Value Asset (Liability) | $ (6,467) | (1,311)
Designated as hedging instrument | Cash flow hedges | Interest rate cap agreements |  |
Derivative [Line Items] |  |
Notional Amount | $ 100,000 | $ 100,000
Weighted Average Maturity (in years) | 4 years 3 months 18 days | 4 years 7 months 6 days
Estimated Fair Value Asset (Liability) | $ (6,467) | $ (1,311)
Designated as hedging instrument | Fair value hedges |  |
Derivative [Line Items] |  |
Notional Amount | 37,190 | 37,190
Estimated Fair Value Asset (Liability) | 3,368 | 593
Designated as hedging instrument | Fair value hedges | Interest rate swap |  |
Derivative [Line Items] |  |
Notional Amount | $ 37,190 | $ 37,190
Weighted Average Maturity (in years) | 9 years 3 months 18 days | 9 years 7 months 6 days
Estimated Fair Value Asset (Liability) | $ 3,368 | $ 593
Hedged Asset, Fair Value Hedge | 38,710 | 39,026
Cumulative amount of fair value hedging adjustment in carrying amount | 207 | 523
Designated as hedging instrument | Economic hedges |  |
Derivative [Line Items] |  |
Notional Amount | $ 511,741 | 421,434
Weighted Average Maturity (in years) |  |
Estimated Fair Value Asset (Liability) | $ (73) | (84)
Designated as hedging instrument | Economic hedges | Forward sale commitments |  |
Derivative [Line Items] |  |
Notional Amount | $ 53,751 | $ 11,228
Weighted Average Maturity (in years) | 2 months 12 days | 1 month 6 days
Estimated Fair Value Asset (Liability) | $ (73) | $ (84)
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | MNA counterparty |  |
Derivative [Line Items] |  |
Notional Amount | $ 150,490 | $ 135,598
Weighted Average Maturity (in years) | 7 years 9 months 18 days | 7 years 6 months
Estimated Fair Value Asset (Liability) | $ (15,463) | $ (4,669)
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | RPA counterparty |  |
Derivative [Line Items] |  |
Notional Amount | $ 78,505 | $ 69,505
Weighted Average Maturity (in years) | 8 years 8 months 12 days | 8 years 9 months 18 days
Estimated Fair Value Asset (Liability) | $ (9,470) | $ (3,377)
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | Customer |  |
Derivative [Line Items] |  |
Notional Amount | $ 228,995 | $ 205,103
Weighted Average Maturity (in years) | 8 years 1 month 6 days | 8 years 1 month 6 days
Estimated Fair Value Asset (Liability) | $ 24,933 | $ 8,046
Not designated as hedging instrument |  |
Derivative [Line Items] |  |
Notional Amount | 23,146 | 21,748
Estimated Fair Value Asset (Liability) | 93 | 59
Not designated as hedging instrument | Interest rate lock commitments |  |
Derivative [Line Items] |  |
Notional Amount | $ 23,146 | $ 21,748
Weighted Average Maturity (in years) | 1 month 6 days | 1 month 6 days
Estimated Fair Value Asset (Liability) | $ 93 | $ 59

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