v3.26.1
Loans And Allowance For Credit Losses (Summary Classification Of Held To Maturity Loan Portfolio) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Loans And Allowance For Loan Losses [Line Items]    
Loans $ 20,833,481 $ 17,771,263
Commercial Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 12,673,692 11,551,959
Personal Banking Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 8,159,789 6,219,304
Business Loan [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 7,115,984 6,439,380
Business Loan [Member] | Commercial Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 7,115,984 6,439,380
Real estate - construction and land    
Loans And Allowance For Loan Losses [Line Items]    
Loans 1,493,455 1,438,012
Real estate - construction and land | Commercial Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 1,493,455 1,438,012
Business Real Estate Loan [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 4,064,253 3,674,567
Business Real Estate Loan [Member] | Commercial Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 4,064,253 3,674,567
Personal Real Estate Loan [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 4,369,077 3,053,435
Personal Real Estate Loan [Member] | Personal Banking Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 4,369,077 3,053,435
Consumer Loan [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 2,527,448 2,196,822
Consumer Loan [Member] | Personal Banking Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 2,527,448 2,196,822
Revolving home equity    
Loans And Allowance For Loan Losses [Line Items]    
Loans 649,332 375,159
Revolving home equity | Personal Banking Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 649,332 375,159
Credit Card Receivable [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 561,277 589,694
Credit Card Receivable [Member] | Personal Banking Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans 561,277 589,694
Overdrafts    
Loans And Allowance For Loan Losses [Line Items]    
Loans 52,655 4,194
Overdrafts | Personal Banking Portfolio Segment [Member]    
Loans And Allowance For Loan Losses [Line Items]    
Loans $ 52,655 $ 4,194