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FAIR VALUE DISCLOSURES, Quantitative Information about Recurring and Non-Recurring Level 3 Fair Value Measurements (Details)
$ in Thousands
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Mortgage servicing rights $ 26,658 $ 25,795 $ 27,474 $ 27,505 $ 25,425 $ 19,700
Non-recurring [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Loans held for investment 18,098   4,821      
Non-recurring [Member] | Third Party Appraisals or Inspections [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Loans held for investment $ 18,098   $ 4,821      
Non-recurring [Member] | Third Party Appraisals or Inspections [Member] | Collateral Discounts and Selling Costs [Member] | Minimum [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Loans held for investment, measurement input 0.20   0.20      
Non-recurring [Member] | Third Party Appraisals or Inspections [Member] | Collateral Discounts and Selling Costs [Member] | Maximum [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Loans held for investment, measurement input 1   1      
Recurring [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Mortgage servicing rights $ 26,658   $ 27,474      
Recurring [Member] | Discounted Cash Flows [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Mortgage servicing rights $ 26,658   $ 27,474      
Recurring [Member] | Discounted Cash Flows [Member] | Constant Prepayment Rate [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Mortgage servicing rights, measurement input 0.0729   0.0747      
Recurring [Member] | Discounted Cash Flows [Member] | Discount Rate [Member]            
Fair Value Measurement Inputs and Valuation Techniques [Abstract]            
Mortgage servicing rights, measurement input 0.0965   0.0915