Quarterly report pursuant to Section 13 or 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 9 Months Ended 12 Months Ended 21 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
segment
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Nonaccrual loans, interest income     $ 0   $ 0        
Loans under modified terms $ 1,296,000 $ 1,019,000 24,477,000 $ 29,419,000 29,400,000        
Amortized Cost 1,296,000 1,019,000 24,477,000 29,419,000 29,400,000        
Total Allowance for credit losses 160,685,000 125,627,000 160,685,000 125,627,000 132,182,000 $ 160,685,000 $ 158,131,000 $ 120,683,000 $ 110,768,000
Unfunded commitments on loans modified and designated as TLMs 0   $ 0   $ 1,600,000 0      
TLM loans that went into default           0      
TLMs that are past due           0      
Number of operating segments | segment     2            
Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List Not Disclosed (Flag)     true   true        
Commercial Portfolio Segment [Member]                  
Accounts, Notes, Loans and Financing Receivable [Line Items]                  
Total Allowance for credit losses $ 132,720,000 $ 98,940,000 $ 132,720,000 $ 98,940,000 $ 105,896,000 $ 132,720,000 $ 131,139,000 $ 92,970,000 $ 82,753,000