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Loans and Allowance for Credit Losses (Composition of Nonaccrual Loans and Without an Allowance for Loan Loss by Portfolio Class) (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | $ 113,554 | $ 97,335
Nonaccrual without allowance for loan loss | 12,088 | 12,957
Total Commercial [Member] | Commercial Real Estate - Income Producing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 4,782 | 356
Nonaccrual without allowance for loan loss | 4,021 |
Total Commercial [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 3,281 | 5,561
Nonaccrual without allowance for loan loss | 2,127 | 4,929
Residential Mortgages [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 41,026 | 44,086
Nonaccrual without allowance for loan loss | 2,528 | 1,475
Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 10,265 | 11,187
Nonaccrual without allowance for loan loss | 320 | 500
Total Commercial And Industrial [Member] | Total Commercial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 54,200 | 36,145
Nonaccrual without allowance for loan loss | 3,092 | 6,053
Total Commercial And Industrial [Member] | Total Commercial [Member] | Commercial Non-Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 47,192 | 33,418
Nonaccrual without allowance for loan loss | 2,570 | 4,855
Total Commercial And Industrial [Member] | Total Commercial [Member] | Commercial Real Estate - Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 7,008 | 2,727
Nonaccrual without allowance for loan loss | $ 522 | $ 1,198

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