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GOODWILL AND OTHER INTANGIBLE ASSETS--Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill | $ 0 | $ 1,800 | $ 0 | $ 0 | $ 1,788
Other Depreciation and Amortization | 3,400 |  | 3,300 | 6,600 | 6,400
Amortization of Mortgage Servicing Rights (MSRs) | $ 1,100 |  | $ 900 | $ 1,900 | $ 1,700
Core deposits |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets amortization method |  |  |  | accelerated basis |
Estimated weighted average life (in years) | 2 years 9 months 18 days |  |  | 2 years 9 months 18 days |
Customer lists |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets amortization method |  |  |  | straight-line basis |
Customer lists | Summit Funding Group |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Net | $ 21,400 | 22,600 |  | $ 21,400 |
Finite-Lived Intangible Assets, Remaining Amortization Period | 8 years 6 months |  |  | 8 years 6 months |
Customer lists | Bannockburn [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Net | $ 18,500 | 20,300 |  | $ 18,500 |
Finite-Lived Intangible Assets, Remaining Amortization Period | 5 years 2 months 12 days |  |  | 5 years 2 months 12 days |
Customer lists | Agile Premium Finance |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Net | $ 2,400 | $ 2,500 |  | $ 2,400 |
Finite-Lived Intangible Assets, Remaining Amortization Period | 11 years 8 months 12 days |  |  | 11 years 8 months 12 days |

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- Definition The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + 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://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481229/860-50-50-4 + Details
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