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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 | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | $ 113,343 | $ 106,870
Nonaccrual without allowance for loan loss | 10,681 | 14,883
Total Commercial [Member] | Commercial Real Estate - Income Producing [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 2,010 | 4,760
Nonaccrual without allowance for loan loss | 1,326 | 5,114
Total Commercial [Member] | Construction and Land Development [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 1,028 | 3,173
Nonaccrual without allowance for loan loss | 0 | 2,178
Residential Mortgages [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 51,262 | 46,986
Nonaccrual without allowance for loan loss | 1,076 | 2,511
Consumer [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 11,732 | 10,703
Nonaccrual without allowance for loan loss | 167 | 316
Total Commercial And Industrial [Member] | Total Commercial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 47,311 | 41,248
Nonaccrual without allowance for loan loss | 8,112 | 4,764
Total Commercial And Industrial [Member] | Total Commercial [Member] | Commercial Non-Real Estate [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 41,381 | 34,525
Nonaccrual without allowance for loan loss | 5,302 | 3,294
Total Commercial And Industrial [Member] | Total Commercial [Member] | Commercial Real Estate - Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Nonaccrual | 5,930 | 6,723
Nonaccrual without allowance for loan loss | $ 2,810 | $ 1,470

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