v3.26.1
Loans (Composition Of Loan Portfolio By Class Of Loan) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance $ 9,731,356   $ 8,051,242      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 9,731,356   8,051,242      
Financing Receivable, Allowance for Credit Loss (110,686) $ (108,590) (92,973) $ (89,785) $ (88,130) $ (87,966)
Loans and Leases Receivable, Net Amount 9,620,670   7,958,269      
Construction Real Estate Commercial [Domain]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 490,100   298,491      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 490,100   298,491      
Residential Real Estate Commercial [Member]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 974,231   752,695      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 974,231   752,695      
Residential Real Estate - Mortgage [Member]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 1,481,756   1,375,641      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,481,756   1,375,641      
Residential Real Estate - HELOC [Member]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 321,202   241,058      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 321,202   241,058      
Residential Real Estate - Installment [Member]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 5,592   5,988      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 5,592   5,988      
Construction Real Estate Retail            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 123,812   100,934      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 123,812   100,934      
Commercial Financial Agricultural less PPP and Overdrafts            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 1,366,431   1,210,047      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,366,431          
Bank Overdrafts            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 2,657   2,103      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,657   2,103      
Commercial Real Estate [Member]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance [1] 3,063,566   2,208,660      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 3,063,566   2,208,660      
Financing Receivable, Allowance for Credit Loss (26,205) (25,872) (18,177) (20,499) (19,838) (19,571)
Consumer less GFSC and Check Loans            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 1,874,268   1,821,471      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,874,268   1,821,471      
Check loans            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 1,694   1,776      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,694   1,776      
Finance Leases Portfolio Segment [Member]            
Financing Receivable, Credit Quality Indicator [Line Items]            
Loan balance 26,047   32,378      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 26,047   32,378      
Financing Receivable, Allowance for Credit Loss $ (267) $ (266) $ (208) $ (192) $ (181) $ (151)
[1] Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that were not broken out by class.