Loans (Recorded Investment In Nonaccrual Restructured And Loans Past Due 90 Days Or More And Accruing) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	$ 63,080	$ 68,178
Loans past due 90 days or more and accruing	2,427	1,754
Total nonperforming loans	65,507	69,932
Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	22,562	24,241
Loans past due 90 days or more and accruing	19	0
Total nonperforming loans	22,581	24,241
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	119	8
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	119	8
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	1,363	5,700
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	1,363	5,700
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	12,545	11,368
Loans past due 90 days or more and accruing	1,404	913
Total nonperforming loans	13,949	12,281
Residential Real Estate - HELOC [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	1,094	918
Loans past due 90 days or more and accruing	0	15
Total nonperforming loans	1,094	933
Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	47	31
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	47	31
Construction Real Estate Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	20	22
Loans past due 90 days or more and accruing	18	0
Total nonperforming loans	38	22
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	22,534	23,230
Loans past due 90 days or more and accruing	125	0
Total nonperforming loans	22,659	23,230
Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	3	17
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	3	17
Consumer less GFSC and Check Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual loans	2,793	2,643
Loans past due 90 days or more and accruing	861	826
Total nonperforming loans	$ 3,654	$ 3,469