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DERIVATIVES AND HEDGING ACTIVITIES - Classification on Consolidated Statements of Financial Condition (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 USD ($) DerivativeInstrument | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) DerivativeInstrument | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) DerivativeInstrument
Cash Flow Hedges |  |  |  |  |
Collateral received against obligations in net asset position |  |  |  |  | $ 17,800,000
Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Loan level derivative income | $ 783,000 | $ 549,000 | $ 6,353,000 | $ 2,240,000 |
Interest Rate Swaps Related to FHLBNY Advances | Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, assets | DerivativeInstrument | 4 |  | 4 |  | 4
Notional amount, assets | $ 150,000,000 |  | $ 150,000,000 |  | $ 150,000,000
Fair value assets | $ 16,657,000 |  | $ 16,657,000 |  | $ 17,150,000
Loan Level Interest Rate Swaps with Borrower (Assets) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, assets | DerivativeInstrument | 4 |  | 4 |  | 3
Notional amount, assets | $ 34,050,000 |  | $ 34,050,000 |  | $ 53,311,000
Fair value assets | $ 360,000 |  | $ 360,000 |  | $ 1,524,000
Loan Level Interest Rate Swaps with Borrower (Liabilities) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, liabilities | DerivativeInstrument | 219 |  | 219 |  | 185
Notional amount, liabilities | $ 1,549,816,000 |  | $ 1,549,816,000 |  | $ 1,214,736,000
Fair value liabilities | 158,976,000 |  | 158,976,000 |  | $ 126,751,000
Posted collateral | $ 0 |  | $ 0 |  |
Loan level interest rate floors with borrower | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, assets | DerivativeInstrument | 3 |  | 3 |  |
Notional amount, assets | $ 17,625,000 |  | $ 17,625,000 |  |
Loan level interest rate floors with borrower (liabilities) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, liabilities | DerivativeInstrument | 25 |  | 25 |  | 40
Notional amount, liabilities | $ 178,032,000 |  | $ 178,032,000 |  | $ 326,309,000
Fair value liabilities | 1,376,000 |  | 1,376,000 |  | 9,060,000
Loan level interest rate swaps with third party counterparties (assets) | Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Posted collateral | $ 0 |  | $ 0 |  | $ 0
Loan level interest rate swaps with third party counterparties (assets) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, assets | DerivativeInstrument |  |  |  |  | 185
Count, liabilities | DerivativeInstrument | 219 |  | 219 |  |
Notional amount, assets | $ 1,549,816,000 |  | $ 1,549,816,000 |  | $ 1,214,736,000
Fair value assets | 158,976,000 |  | 158,976,000 |  | 126,751,000
Posted collateral | 0 |  | 0 |  | 0
Collateral received against obligations in net asset position | $ 167,600,000 |  | $ 167,600,000 |  | $ 135,300,000
Loan level interest rate swaps with third party counterparties (liabilities) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, assets | DerivativeInstrument | 4 |  | 4 |  |
Count, liabilities | DerivativeInstrument |  |  |  |  | 3
Notional amount, assets | $ 34,050,000 |  | $ 34,050,000 |  |
Notional amount, liabilities |  |  |  |  | $ 53,311,000
Fair value liabilities | $ 360,000 |  | $ 360,000 |  | $ 1,524,000
Loan level interest rate floors with third party counterparties (assets) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, assets | DerivativeInstrument |  |  |  |  | 40
Notional amount, assets |  |  |  |  | $ 326,309,000
Fair value assets |  |  |  |  | $ 9,060,000
Loan level interest rate floors with third party counterparties | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, liabilities | DerivativeInstrument | 3 |  | 3 |  |
Notional amount, assets | $ 17,625,000 |  | $ 17,625,000 |  |
Loan level interest rate floors with third party counterparties (liabilities) | Not Designated as Hedging Instrument |  |  |  |  |
Cash Flow Hedges |  |  |  |  |
Count, liabilities | DerivativeInstrument | 25 |  | 25 |  |
Notional amount, assets | $ 178,032,000 |  | $ 178,032,000 |  |
Fair value assets | $ 1,376,000 |  | $ 1,376,000 |  |

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