v3.26.1
Loans (Amortized Cost basis of Loans Modified to Borrowers Experiencing Financial Difficulty) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Modified [Line Items]    
Financing receivables, amortized cost basis $ 4,705,468 $ 4,610,480
Extended Maturity [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 2,807  
Percentage of total loans 0.10%  
Commercial Business [Member] | Extended Maturity [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Commercial Mortgage [Member] | Extended Maturity [Member] | Construction [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Commercial Mortgage [Member] | Extended Maturity [Member] | Multifamily [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Commercial Mortgage [Member] | Extended Maturity [Member] | Non-Owner Occupied [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Commercial Mortgage [Member] | Extended Maturity [Member] | Owner Occupied [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Residential Real Estate Loans [Member] | Extended Maturity [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 2,807  
Percentage of total loans 0.10%  
Residential Real Estate Lines [Member] | Extended Maturity [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Consumer Indirect [Member] | Extended Maturity [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%  
Other Consumer [Member] | Extended Maturity [Member]    
Financing Receivable, Modified [Line Items]    
Amortized cost basis $ 0  
Percentage of total loans 0.00%