Loans And Allowance For Credit Losses (Amortized Cost Basis of Loans Modified After Adoption of ASU 2022-02) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 103,617	$ 224,420
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	2,329	3,392
Financing Receivable, Modified in Period, Ninety Days Past Due	9,555	16,681
Financing Receivable, Modified in Period, Amount	115,501	244,493
Financing Receivable, Modified in Period, Amount	$ 66,870	$ 136,328
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.30%	0.80%
Commercial Portfolio Segment [Member] | Business Loan [Member]
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 90,748	$ 89,831
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	200	44
Financing Receivable, Modified in Period, Ninety Days Past Due	0	0
Financing Receivable, Modified in Period, Amount	90,948	89,875
Financing Receivable, Modified in Period, Amount	$ 62,272	$ 54,539
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.90%	0.90%
Commercial Portfolio Segment [Member] | Business Real Estate Loan [Member]
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 2,260	$ 124,311
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	0	124
Financing Receivable, Modified in Period, Ninety Days Past Due	9,092	14,667
Financing Receivable, Modified in Period, Amount	11,352	139,102
Financing Receivable, Modified in Period, Amount	$ 533	$ 76,958
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.00%	2.10%
Commercial Portfolio Segment [Member] | Real Estate - construction and land [Member]
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 2,340
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	0
Financing Receivable, Modified in Period, Ninety Days Past Due	0
Financing Receivable, Modified in Period, Amount	2,340
Financing Receivable, Modified in Period, Amount	$ 2,340
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.10%
Personal Banking Portfolio Segment [Member] | Personal Real Estate Loan [Member]
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 5,808	$ 7,008
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	1,705	2,762
Financing Receivable, Modified in Period, Ninety Days Past Due	144	1,763
Financing Receivable, Modified in Period, Amount	7,657	11,533
Financing Receivable, Modified in Period, Amount	$ 801	$ 3,884
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.00%	0.10%
Personal Banking Portfolio Segment [Member] | Consumer Loan [Member]
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 93	$ 852
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	4	17
Financing Receivable, Modified in Period, Ninety Days Past Due	45	33
Financing Receivable, Modified in Period, Amount	142	902
Financing Receivable, Modified in Period, Amount	$ 22	$ 67
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.00%	0.00%
Personal Banking Portfolio Segment [Member] | Credit Card Receivable [Member]
Financing Receivable, Modified, Past Due [Line Items]
Financing Receivable, Modified in Period, Current	$ 2,368	$ 2,418
Financing Receivable, Modified in Period, Thirty to Eighty Nine Days Past Due	420	445
Financing Receivable, Modified in Period, Ninety Days Past Due	274	218
Financing Receivable, Modified in Period, Amount	3,062	3,081
Financing Receivable, Modified in Period, Amount	$ 902	$ 880
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.20%	0.20%