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INVESTMENT SECURITIES - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Debt securities, available-for-sale, unrealized loss position, allowance for credit loss | $ 0 |  | $ 0 |  | $ 0
Gross losses | 0 | $ 12,000 | 0 | $ 17,000 |
Collateral Pledged |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Investment securities pledged to secure public funds, fair value | 706,100,000 |  | 706,100,000 |  | $ 669,200,000
Equity Securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Gains (losses) on investments | $ 8,000 | $ (12,000) | $ 21,000 | $ (17,000) |

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- Definition Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 + Details
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