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GOODWILL AND OTHER INTANGIBLES - Additional Information (Details) - USD ($) |  | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 01, 2022 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Goodwill |  | $ 114,312,000 | $ 114,312,000 | $ 114,312,000 | $ 114,312,000 | $ 95,127,000 | $ 94,301,000
Goodwill impairment | $ 0 |  |  |  |  |  |
Core deposit intangibles |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets, weighted average useful life |  | 6 years 2 months 12 days |  |  |  |  |
Core deposit intangibles | Minimum |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Amortization period of other intangible assets |  | 3 years |  |  |  |  |
Core deposit intangibles | Maximum |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Amortization period of other intangible assets |  | 10 years |  |  |  |  |
Deepstack Technologies, LLC |  |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  | $ 18,200,000 |  |

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