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Loans and Leases - Summary of Loans by Classification (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans [1] $ 6,840,809 $ 6,756,907
Loans Receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 6,840,809 6,756,907
Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 334,701 300,941
Commercial real estate, other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 2,244,721 2,363,967
Commercial and industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 1,724,108 1,535,755
Premium finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 270,634 253,075
Leases    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 342,343 365,649
Residential real estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 832,656 861,722
Home equity lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 284,173 253,864
Consumer, indirect    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 685,329 700,582
Consumer, direct    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans 120,536 120,338
Deposit account overdrafts    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans $ 1,608 $ 1,014
[1] Also referred to throughout this Quarterly Report on Form 10-Q as "total loans" or "loans held for investment."