Loans and Allowance for Credit Losses (Provides Detail by Portfolio Class for Reportable MEFDs) (Details) - Modified Loans To Borrowers Experiencing Financial Difficulty [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 91,500		$ 91,500		$ 99,500
Term Extension [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 59,206	$ 52,951	$ 78,328	$ 72,430
Reportable modified loans percentage of portfolio class	0.25%	0.23%	0.33%	0.31%
Term Extension [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 1,271	$ 988	$ 14,537	$ 3,618
Reportable modified loans percentage of portfolio class	0.03%	0.02%	0.36%	0.09%
Term Extension [Member] | Consumer [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 43		$ 43	$ 143
Reportable modified loans percentage of portfolio class	0.00%		0.00%	0.01%
Term Extension [Member] | Commercial Real Estate - Income Producing [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance		$ 3,050		$ 3,050
Reportable modified loans percentage of portfolio class		0.08%		0.08%
Significant Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 9,389
Reportable modified loans percentage of portfolio class			0.04%
Significant Payment Delay [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 413
Reportable modified loans percentage of portfolio class			0.01%
Term Extensions and Significant Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 2,227	$ 17,020	$ 2,297	$ 17,020
Reportable modified loans percentage of portfolio class	0.01%	0.07%	0.01%	0.07%
Term Extensions and Significant Payment Delay [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 2,077		$ 2,077
Reportable modified loans percentage of portfolio class	0.05%		0.05%
Term Extensions and Significant Payment Delay [Member] | Consumer [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 150		$ 150
Reportable modified loans percentage of portfolio class	0.01%		0.01%
Other [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 606		$ 606
Reportable modified loans percentage of portfolio class	0.00%		0.00%
Other [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 606		$ 606
Reportable modified loans percentage of portfolio class	0.02%		0.02%
Total Commercial And Industrial [Member] | Term Extension [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 57,892	$ 48,913	$ 63,748	$ 65,619
Reportable modified loans percentage of portfolio class	0.45%	0.39%	0.49%	0.52%
Total Commercial And Industrial [Member] | Term Extension [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance	$ 57,892	$ 48,913	$ 63,408	$ 65,619
Reportable modified loans percentage of portfolio class	0.60%	0.51%	0.66%	0.68%
Total Commercial And Industrial [Member] | Term Extension [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 340
Reportable modified loans percentage of portfolio class			0.01%
Total Commercial And Industrial [Member] | Significant Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 8,976
Reportable modified loans percentage of portfolio class			0.07%
Total Commercial And Industrial [Member] | Significant Payment Delay [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance			$ 8,976
Reportable modified loans percentage of portfolio class			0.09%
Total Commercial And Industrial [Member] | Term Extensions and Significant Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance		$ 17,020	$ 70	$ 17,020
Reportable modified loans percentage of portfolio class		0.13%	0.00%	0.13%
Total Commercial And Industrial [Member] | Term Extensions and Significant Payment Delay [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total reportable modified loans, Balance		$ 17,020	$ 70	$ 17,020
Reportable modified loans percentage of portfolio class		0.18%	0.00%	0.18%