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INVESTMENT SECURITIES INVESTMENTS - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Gain (Loss) on Securities [Line Items] |  |  |
Proceeds from Sale of Debt Securities, Available-for-sale | $ 92,187 | $ 277,082 | $ 375,276
Debt Securities, Available-for-sale, Realized Loss | 1,300 | 1,600 | 7,600
Available For Sale Securities Net Realized Gain Loss Tax Provision | (284) | (132) | (173)
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Transfer, Amount | 0 | 0 |
Debt Securities, Available-for-Sale, Restricted | 1,600,000 | 1,600,000 |
Debt Securities, Held-to-maturity, Allowance for Credit Loss | $ 0 | $ 0 |
NumberOfSecuritiesInSecurityPortfolio | 1,018 | 1,251 |
NumberOfSecuritiesInUnrealizedLossPosition | 783 | 891 |
Debt Securities, Held-to-maturity, Nonaccrual | $ 0 |  |
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss | (8,763) | $ (7,641) |
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale |  |  | 375,300
Debt Securities, Available-for-sale, Realized Gain | $ 6 | $ 1,000 | $ 6,800

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