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Loans, net and allowance for credit losses - Major Classifications of Loans Outstanding (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable |  |
Loans | $ 4,302,821 | $ 4,066,896
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 712,705 | 667,948
Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 200,552 | 202,303
Real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 3,130,510 | 2,916,419
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 2,490,510 | 2,314,110
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 640,000 | 602,309
Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 99,496 | 111,238
Indirect auto |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 82,721 | 93,742
Consumer other |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | 16,775 | 17,496
Equipment financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Loans | $ 159,558 | $ 168,988

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