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ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($) | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023
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Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 33,209,000 |  | $ 29,898,000 |  |  |
Individually evaluated include Nonaccrual loans | 115,000,000 |  | 99,800,000 |  |  |
Individually evaluated non accrual loans performing modified loans | 0 |  |  |  |  |
Allowance allocated to modified loans | 893,000 |  |  |  |  |
Allowance for credit losses | 81,770,000 | $ 75,150,000 | $ 72,992,000 | $ 67,984,000 | $ 66,251,000 | $ 65,888,000
Allowance for credit losses, due to specific reserves | $ 5,800,000 |  |  |  |  |
Allowance for credit losses, percentage of loans | 1.41% |  | 1.32% |  |  |
Commercial and Industrial [Member] |  |  |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Allowance for credit losses, due to specific reserves | $ 5,200,000 |  |  |  |  |
Multifamily Property [Member] |  |  |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Allowance for credit losses, due to specific reserves | 1,900,000 |  |  |  |  |
Loans [Member] |  |  |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 29,700,000 |  | $ 26,200,000 |  |  |

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