v3.25.2
Loans And Allowance For Credit Losses (Summary of Activity in the Allowance for Credit Losses) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Mar. 31, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]            
Allowance for Credit Loss, Beginning Balance   $ 160,465   $ 162,395 $ 162,395  
Provision for credit losses on loans $ 7,919 7,849 $ 23,014 14,796    
Loans charged off 12,025 11,868 25,318 23,033    
Recoveries on Loans 2,335 2,111 4,822 4,399    
Net loan charge-offs (recoveries) 9,690 9,757 20,496 18,634    
Allowance for Credit Loss, Ending Balance   158,557   158,557    
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest 165,260   165,260   162,742 $ 167,031
Liability for Unfunded Lending Commitments, Beginning Balance 18,327 23,086 18,935 25,246 25,246  
Provision for credit losses on unfunded lending commitments (2,322) (2,381) (2,930) (4,541)    
Liability for Unfunded Lending Commitments, Ending Balance 16,005 20,705 16,005 20,705 18,935  
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS 181,265 179,262 181,265 179,262    
Commercial Portfolio Segment [Member]            
Financing Receivable, Allowance for Credit Loss [Roll Forward]            
Allowance for Credit Loss, Beginning Balance 106,700 105,464 106,769 108,201 108,201  
Provision for credit losses on loans 185 2,367 539 (488)    
Loans charged off 495 850 1,221 1,166 2,035  
Recoveries on Loans 464 236 767 670    
Net loan charge-offs (recoveries) 31 614 454 496    
Allowance for Credit Loss, Ending Balance 106,854 107,217 106,854 107,217 106,769  
Liability for Unfunded Lending Commitments, Beginning Balance 17,047 21,636 17,887 23,909 23,909  
Provision for credit losses on unfunded lending commitments (2,276) (2,273) (3,116) (4,546)    
Liability for Unfunded Lending Commitments, Ending Balance 14,771 19,363 14,771 19,363 17,887  
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS 121,625 126,580 121,625 126,580    
Personal Banking Portfolio Segment [Member]            
Financing Receivable, Allowance for Credit Loss [Roll Forward]            
Allowance for Credit Loss, Beginning Balance 60,331 55,001 55,973 54,194 54,194  
Provision for credit losses on loans 7,734 5,482 22,475 15,284    
Loans charged off 11,530 11,018 24,097 21,867 45,236  
Recoveries on Loans 1,871 1,875 4,055 3,729    
Net loan charge-offs (recoveries) 9,659 9,143 20,042 18,138    
Allowance for Credit Loss, Ending Balance 58,406 51,340 58,406 51,340 55,973  
Liability for Unfunded Lending Commitments, Beginning Balance 1,280 1,450 1,048 1,337 1,337  
Provision for credit losses on unfunded lending commitments (46) (108) 186 5    
Liability for Unfunded Lending Commitments, Ending Balance 1,234 1,342 1,234 1,342 $ 1,048  
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS $ 59,640 $ 52,682 $ 59,640 $ 52,682