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Loans, net and allowance for credit losses - Major Classifications of Loans Outstanding (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable |  |
Loans | $ 4,190,202 | $ 4,066,896
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 675,446 | 667,948
Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 212,586 | 202,303
Real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 3,041,183 | 2,916,419
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 2,423,027 | 2,314,110
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 618,156 | 602,309
Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 101,318 | 111,238
Indirect auto |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 85,726 | 93,742
Consumer other |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 15,592 | 17,496
Equipment financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | $ 159,669 | $ 168,988

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