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DERIVATIVES AND HEDGING ACTIVITIES - Classification on Consolidated Statements of Financial Condition (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) DerivativeInstrument | Dec. 31, 2023 USD ($) DerivativeInstrument | Dec. 31, 2022 USD ($)
Cash Flow Hedges |  |  |
Collateral received against obligations in net asset position | $ 9,100 | $ 13,500 |
Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Loan level derivative income | $ 2,114 | $ 7,081 | $ 3,637
Loan level interest rate swaps with borrower (assets) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, assets | DerivativeInstrument | 23 | 49 |
Notional amount, assets | $ 321,745 | $ 491,394 |
Fair value assets | $ 3,704 | $ 10,985 |
Loan level interest rate swaps with borrower (liabilities) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, liabilities | DerivativeInstrument | 202 | 178 |
Notional amount, liabilities | $ 1,344,204 | $ 1,121,085 |
Fair value liabilities | 104,474 | $ 103,570 |
Collateral already posted, aggregate fair value | $ 0 |  |
Loan level interest rate floors with borrower (assets) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, liabilities | DerivativeInstrument |  | 7 |
Notional amount, liabilities |  | $ 40,761 |
Fair value liabilities |  | $ 116 |
Loan level interest rate floors with borrower (liabilities) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, assets | DerivativeInstrument |  | 2 |
Notional amount, assets |  | $ 29,721 |
Loan level interest rate swaps with third party counterparties (assets) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, assets | DerivativeInstrument | 202 | 178 |
Count, liabilities | DerivativeInstrument | 23 |  |
Notional amount, assets | $ 1,344,204 | $ 1,121,085 |
Notional amount, liabilities | 321,745 |  |
Fair value assets | 104,474 | 103,570 |
Fair value liabilities | 3,704 |  |
Collateral already posted, aggregate fair value | 0 | 0 |
Collateral received against obligations in net asset position |  | $ 94,700 |
Loan level interest rate swaps with third party counterparties (liabilities) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, liabilities | DerivativeInstrument |  | 49 |
Notional amount, liabilities |  | $ 491,394 |
Fair value liabilities |  | $ 10,985 |
Loan level interest rate floors with third party counterparties (assets) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, assets | DerivativeInstrument |  | 2 |
Notional amount, assets |  | $ 29,721 |
Collateral received against obligations in net asset position | $ 103,300 |  |
Loan level interest rate floors with third party counterparties (assets) | Not Designated as Hedging Instrument |  |  |
Cash Flow Hedges |  |  |
Count, liabilities | DerivativeInstrument |  | 7 |
Notional amount, assets |  | $ 40,761 |
Fair value assets |  | $ 116 |

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