Annual report pursuant to Section 13 and 15(d)

LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Narrative) (Details)

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LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Narrative) (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2022
segment
Dec. 31, 2022
USD ($)
segment
Jun. 30, 2022
segment
Dec. 31, 2023
USD ($)
loan
segment
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Nonaccrual loans, interest income       $ 0 $ 0  
Loans under modified terms       51,237,000    
Troubled Debt Restructurings (TDRs)   $ 14,190,000     14,190,000  
Total Allowance for credit losses   $ 110,768,000   132,182,000 110,768,000 $ 99,787,000
Transfer from LHFI to LHFS       $ 0 899,000 0
Number of operating segments | segment 2 2 1 2    
Loans held for investment, accrued interest receivable   $ 58,900,000   $ 72,500,000 $ 58,900,000  
Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List Not Disclosed (Flag)       true true  
Commercial Portfolio            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Total Allowance for credit losses   82,753,000   $ 105,896,000 $ 82,753,000 $ 77,902,000
Number of loans with associated charge-offs | loan       2    
Troubled Debt Restructurings [Member]            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Period for restructured loan to be considered default         90 days  
Troubled Debt Restructurings (TDRs)   14,200,000     $ 14,200,000  
Total Allowance for credit losses   $ 739,000     $ 739,000  
Troubled Loan Modifications            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Loans under modified terms       $ 51,200,000    
Period for restructured loan to be considered default       90 days    
Total Allowance for credit losses       $ 289,000    
Unfunded commitments on TLM loans       1,600,000    
Troubled Loan Modifications | Past Due            
Accounts, Notes, Loans and Financing Receivable [Line Items]            
Loans under modified terms       $ 426,000