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Loans, net and allowance for credit losses - Changes in Allowance for Loan Losses Account by Major Classification of Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Allowance for loan losses: |  |  |  |
Beginning Balance | $ 39,586 | $ 41,054 | $ 39,007 | $ 41,776
Charge-offs | (697) | (1,151) | (1,673) | (2,384)
Recoveries | 317 | 1,226 | 485 | 1,537
Provisions (Credits) | 3,105 | (239) | 4,492 | (39)
Ending balance | 42,311 | 40,890 | 42,311 | 40,890
Commercial |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning Balance | 5,985 | 6,422 | 6,036 | 6,004
Charge-offs | (156) | (415) | (156) | (572)
Recoveries | 6 | 292 | 27 | 305
Provisions (Credits) | 1,164 | (76) | 1,092 | 486
Ending balance | 6,999 | 6,223 | 6,999 | 6,223
Municipal |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning Balance | 1,490 | 1,249 | 1,413 | 1,072
Provisions (Credits) | (287) | 197 | (210) | 374
Ending balance | 1,203 | 1,446 | 1,203 | 1,446
Commercial real estate |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning Balance | 22,171 | 20,861 | 19,998 | 21,804
Charge-offs | (166) | (62) | (166) | (62)
Recoveries |  | 566 | 3 | 566
Provisions (Credits) | 3,356 | (745) | 5,526 | (1,688)
Ending balance | 25,361 | 20,620 | 25,361 | 20,620
Residential real estate |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning Balance | 5,071 | 5,069 | 4,963 | 4,924
Charge-offs |  |  |  | (92)
Recoveries | 1 | 64 | 10 | 65
Provisions (Credits) | (470) | (127) | (371) | 109
Ending balance | 4,602 | 5,006 | 4,602 | 5,006
Consumer |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning Balance | 1,710 | 2,281 | 1,759 | 2,540
Charge-offs | (311) | (259) | (905) | (646)
Recoveries | 156 | 145 | 257 | 318
Provisions (Credits) | 28 | 14 | 472 | (31)
Ending balance | 1,583 | 2,181 | 1,583 | 2,181
Equipment Financing |  |  |  |
Allowance for loan losses: |  |  |  |
Beginning Balance | 3,159 | 5,172 | 4,838 | 5,432
Charge-offs | (64) | (415) | (446) | (1,012)
Recoveries | 154 | 159 | 188 | 283
Provisions (Credits) | (686) | 498 | (2,017) | 711
Ending balance | $ 2,563 | $ 5,414 | $ 2,563 | $ 5,414

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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