Allowance For Credit Losses (Activity In The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 92,973	$ 87,966
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	1,215
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	14,358
Financing Receivable, Allowance for Credit Loss, Writeoff	4,440	3,605
Financing Receivable, Allowance for Credit Loss, Recovery	1,812	3,013
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	2,628	592
Provision for Loan, Lease, and Other Losses	2,672	756
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	108,590	88,130
Ending balance	108,590	88,130
Commercial Financial And Agricultural [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	14,142	12,683
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	130
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	1,559
Financing Receivable, Allowance for Credit Loss, Writeoff	599	301
Financing Receivable, Allowance for Credit Loss, Recovery	346	337
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	253	(36)
Provision for Loan, Lease, and Other Losses	2,008	(1,311)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	17,586	11,408
Ending balance	17,586	11,408
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	18,177	19,571
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	481
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	6,990
Financing Receivable, Allowance for Credit Loss, Writeoff	20	0
Financing Receivable, Allowance for Credit Loss, Recovery	6	14
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	14	(14)
Provision for Loan, Lease, and Other Losses	238	253
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	25,872	19,838
Ending balance	25,872	19,838
Construction Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	7,709	7,125
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	467
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	1,835
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Recovery	7	1,104
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	(7)	(1,104)
Provision for Loan, Lease, and Other Losses	(1,583)	(90)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	8,435	8,139
Ending balance	8,435	8,139
Residential Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	27,344	22,355
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	136
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	3,796
Financing Receivable, Allowance for Credit Loss, Writeoff	119	25
Financing Receivable, Allowance for Credit Loss, Recovery	39	45
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	80	(20)
Provision for Loan, Lease, and Other Losses	(508)	374
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	30,688	22,749
Ending balance	30,688	22,749
Consumer [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	25,393	26,081
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	1
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	178
Financing Receivable, Allowance for Credit Loss, Writeoff	3,702	3,279
Financing Receivable, Allowance for Credit Loss, Recovery	1,414	1,513
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	2,288	1,766
Provision for Loan, Lease, and Other Losses	2,459	1,500
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	25,743	25,815
Ending balance	25,743	25,815
Finance Leases Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	208	151
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration	0
Financing Receivable, Allowance for Credit Loss, Purchased Seasoned Loan	0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Recovery	0	0
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery, Total	0	0
Provision for Loan, Lease, and Other Losses	58	30
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	266	181
Ending balance	$ 266	$ 181

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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- Definition

Amount of increase in allowance for credit loss for financing receivable from purchased seasoned loan.

+ References

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- Definition

Amount of increase in allowance for credit loss for financing receivable purchased with credit deterioration.

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- Definition

Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss.

+ References

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- Definition

Amount of increase in allowance for credit loss on financing receivable from recovery.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

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