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ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($) | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 33,534,000 |  | $ 30,676,000 |  |  |
Individually evaluated include Nonaccrual loans | 81,700,000 |  | 60,600,000 |  |  |
Individually evaluated non accrual loans performing modified loans | 0 |  |  |  |  |
Allowance allocated to modified loans | 149,000 |  |  |  |  |
Allowance for credit losses | $ 67,984,000 | $ 66,251,000 | $ 65,888,000 | $ 62,704,000 | $ 62,250,000 | $ 60,829,000
Allowance for credit losses, percentage of loans | 1.29% |  | 1.21% |  |  |
Multifamily Property [Member] | Maximum [Member] |  |  |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Allowance for credit losses, due to specific reserves | $ 33,600,000 |  |  |  |  |
Multifamily Property [Member] | Minimum [Member] |  |  |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Allowance for credit losses, due to specific reserves | 16,600,000 |  |  |  |  |
Loans [Member] |  |  |  |  |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 30,500,000 |  | $ 27,800,000 |  |  |

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