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MORTGAGE SERVICING RIGHTS - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Finite-Lived Intangible Assets [Line Items]          
Deposits $ 1,473,235   $ 1,473,235   $ 1,424,720
Servicing fees $ 321 $ 346 $ 976 $ 1,049  
Discounted rates | Minimum          
Finite-Lived Intangible Assets [Line Items]          
Servicing asset, measurement input 0.10125 0.09 0.10125 0.09  
Discounted rates | Maximum          
Finite-Lived Intangible Assets [Line Items]          
Servicing asset, measurement input 0.13125 0.12 0.13125 0.12  
Core Deposits          
Finite-Lived Intangible Assets [Line Items]          
Deposits $ 6,526   $ 6,526   2,649
Mortgage servicing rights          
Finite-Lived Intangible Assets [Line Items]          
Residential mortgage loans serviced for others $ 499,482   $ 499,482   $ 523,736