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PREMISES AND EQUIPMENT - Additional Information (Details) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2023 location | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
PREMISES AND EQUIPMENT |  |  |  |  |
Depreciation |  |  | $ 5,400,000 | $ 4,800,000 | $ 4,600,000
Number of branches closed | location | 7 |  |  |  |
Number of branches | location | 72 |  |  |  |
Number of leased branches closed | location | 1 |  |  |  |
Operating expenses |  | $ 1,500,000 |  |  |
Impairment of Long-Lived Assets |  | 1,300,000 |  |  |
Gain (Loss) on Termination of Lease |  | $ 0 |  |  |
Rent expense |  |  | $ 1,200,000 | $ 1,200,000 | $ 1,400,000

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- Definition Number of branches of the entity. + References No definition available. + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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