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Loans And Allowance For Credit Losses (Summary Classification Of Held To Maturity Loan Portfolio) (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Loans And Allowance For Loan Losses [Line Items]
Loans	$ 20,461,064	$ 17,771,263
Commercial Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	12,391,684	11,551,959
Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	8,069,380	6,219,304
Business Loan [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	6,750,356	6,439,380
Business Loan [Member] | Commercial Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	6,750,356	6,439,380
Real estate - construction and land
Loans And Allowance For Loan Losses [Line Items]
Loans	1,581,789	1,438,012
Real estate - construction and land | Commercial Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	1,581,789	1,438,012
Business Real Estate Loan [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	4,059,539	3,674,567
Business Real Estate Loan [Member] | Commercial Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	4,059,539	3,674,567
Personal Real Estate Loan [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	4,407,606	3,053,435
Personal Real Estate Loan [Member] | Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	4,407,606	3,053,435
Consumer Loan [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	2,475,353	2,196,822
Consumer Loan [Member] | Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	2,475,353	2,196,822
Revolving home equity
Loans And Allowance For Loan Losses [Line Items]
Loans	619,178	375,159
Revolving home equity | Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	619,178	375,159
Credit Card Receivable [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	557,733	589,694
Credit Card Receivable [Member] | Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	557,733	589,694
Overdrafts
Loans And Allowance For Loan Losses [Line Items]
Loans	9,510	4,194
Overdrafts | Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Loans	$ 9,510	$ 4,194

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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