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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Apr. 30, 2020 | Nov. 30, 2019 | Mar. 31, 2019
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 876,603 | $ 580,372 |  |  |
Estimated Fair Value Asset (Liability) | 52 | (743) |  |  |
Interest rate swap on deposits |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 50,000 |  | $ 25,000 | $ 50,000 | $ 50,000
Hedged Asset, Fair Value Hedge | 40,209 | 39,026 |  |  |
Cumulative amount of fair value hedging adjustment in carrying amount | 3,019 | 523 |  |  |
Fair Value Hedging | Interest rate swap on deposits |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 37,200 |  |  |  |
Designated as hedging instrument | Cash flow hedges |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 75,000 | 100,000 |  |  |
Estimated Fair Value Asset (Liability) | (2,664) | (1,311) |  |  |
Designated as hedging instrument | Cash flow hedges | Interest rate cap agreements |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 75,000 |  |  |  |
Weighted Average Maturity (in years) | 4 years |  |  |  |
Estimated Fair Value Asset (Liability) | $ (2,664) |  |  |  |
Designated as hedging instrument | Cash flow hedges | Interest rate swap on deposits |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount |  | $ 100,000 |  |  |
Weighted Average Maturity (in years) |  | 4 years 7 months 6 days |  |  |
Estimated Fair Value Asset (Liability) |  | $ (1,311) |  |  |
Designated as hedging instrument | Fair Value Hedging |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 37,190 | 37,190 |  |  |
Estimated Fair Value Asset (Liability) | 2,789 | 593 |  |  |
Designated as hedging instrument | Fair Value Hedging | Interest rate swap on deposits |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 37,190 | $ 37,190 |  |  |
Weighted Average Maturity (in years) | 8 years 7 months 6 days | 9 years 7 months 6 days |  |  |
Estimated Fair Value Asset (Liability) | $ 2,789 | $ 593 |  |  |
Designated as hedging instrument | Economic hedges |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 761,093 | 421,434 |  |  |
Estimated Fair Value Asset (Liability) | (95) | (84) |  |  |
Designated as hedging instrument | Economic hedges | Forward sale commitments |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 50,629 | $ 11,228 |  |  |
Weighted Average Maturity (in years) | 2 months 12 days | 1 month 6 days |  |  |
Estimated Fair Value Asset (Liability) | $ (95) | $ (84) |  |  |
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | MNA counterparty |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 235,947 | $ 135,598 |  |  |
Weighted Average Maturity (in years) | 6 years 9 months 18 days | 7 years 6 months |  |  |
Estimated Fair Value Asset (Liability) | $ (15,938) | $ (4,669) |  |  |
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | RPA counterparty |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 119,285 | $ 69,505 |  |  |
Weighted Average Maturity (in years) | 7 years 10 months 24 days | 8 years 9 months 18 days |  |  |
Estimated Fair Value Asset (Liability) | $ (9,957) | $ (3,377) |  |  |
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | Customer |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 355,232 | $ 205,103 |  |  |
Weighted Average Maturity (in years) | 7 years 1 month 6 days | 8 years 1 month 6 days |  |  |
Estimated Fair Value Asset (Liability) | $ 25,895 | $ 8,046 |  |  |
Not designated as hedging instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 3,320 | 21,748 |  |  |
Estimated Fair Value Asset (Liability) | 22 | 59 |  |  |
Not designated as hedging instrument | Interest Rate Lock Commitment |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 3,320 | $ 21,748 |  |  |
Weighted Average Maturity (in years) | 1 month 6 days | 1 month 6 days |  |  |
Estimated Fair Value Asset (Liability) | $ 22 | $ 59 |  |  |

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