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Allowance for Credit Losses (Tables) | 9 Months Ended
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Sep. 30, 2025
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] |
Schedule of changes in allowance for loan and lease losses, segregated by portfolio segment | The following table shows the changes in the allowance for loan and lease losses, segregated by portfolio segment, for the three months ended September 30, 2025, and 2024.
(Dollars in thousands) |  | Commercial and agricultural |  | Renewable energy |  | Auto and light truck |  | Medium and heavy duty truck |  | Aircraft |  | Construction equipment |  | Commercial real estate |  | Residential real estate and home equity |  | Consumer |  | Total
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of period |  | $ | 24,339 |  |  | $ | 10,044 |  |  | $ | 20,865 |  |  | $ | 6,522 |  |  | $ | 36,706 |  |  | $ | 29,075 |  |  | $ | 25,002 |  |  | $ | 8,766 |  |  | $ | 2,165 |  |  | $ | 163,484 |
Charge-offs |  | 1,269 |  |  | — |  |  | 526 |  |  | — |  |  | — |  |  | 390 |  |  | 4 |  |  | 14 |  |  | 277 |  |  | 2,480 |
Recoveries |  | 92 |  |  | — |  |  | 253 |  |  | — |  |  | 150 |  |  | 10 |  |  | 38 |  |  | 1 |  |  | 61 |  |  | 605 |
Net charge-offs (recoveries) |  | 1,177 |  |  | — |  |  | 273 |  |  | — |  |  | (150) |  |  | 380 |  |  | (34) |  |  | 13 |  |  | 216 |  |  | 1,875 |
Provision (recovery of provision) |  | (1,730) |  |  | 583 |  |  | 404 |  |  | 180 |  |  | (619) |  |  | 681 |  |  | (174) |  |  | 175 |  |  | 321 |  |  | (179) |
Balance, end of period |  | $ | 21,432 |  |  | $ | 10,627 |  |  | $ | 20,996 |  |  | $ | 6,702 |  |  | $ | 36,237 |  |  | $ | 29,376 |  |  | $ | 24,862 |  |  | $ | 8,928 |  |  | $ | 2,270 |  |  | $ | 161,430 |
September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of period |  | $ | 18,637 |  |  | $ | 7,653 |  |  | $ | 17,726 |  |  | $ | 9,221 |  |  | $ | 35,166 |  |  | $ | 26,944 |  |  | $ | 24,847 |  |  | $ | 7,792 |  |  | $ | 2,081 |  |  | $ | 150,067 |
Charge-offs |  | 2,004 |  |  | — |  |  | 302 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 323 |  |  | 2,629 |
Recoveries |  | 217 |  |  | — |  |  | 719 |  |  | — |  |  | 214 |  |  | 28 |  |  | 538 |  |  | 2 |  |  | 60 |  |  | 1,778 |
Net charge-offs (recoveries) |  | 1,787 |  |  | — |  |  | (417) |  |  | — |  |  | (214) |  |  | (28) |  |  | (538) |  |  | (2) |  |  | 263 |  |  | 851 |
Provision (recovery of provision) |  | 2,812 |  |  | 304 |  |  | (188) |  |  | (559) |  |  | 332 |  |  | 1,051 |  |  | (1,118) |  |  | 43 |  |  | 431 |  |  | 3,108 |
Balance, end of period |  | $ | 19,662 |  |  | $ | 7,957 |  |  | $ | 17,955 |  |  | $ | 8,662 |  |  | $ | 35,712 |  |  | $ | 28,023 |  |  | $ | 24,267 |  |  | $ | 7,837 |  |  | $ | 2,249 |  |  | $ | 152,324 |
The following table shows the changes in the allowance for loan and lease losses, segregated by portfolio segment, for the nine months ended September 30, 2025, and 2024.
(Dollars in thousands) |  | Commercial and agricultural |  | Renewable energy |  | Auto and light truck |  | Medium and heavy duty truck |  | Aircraft |  | Construction equipment |  | Commercial real estate |  | Residential real estate and home equity |  | Consumer |  | Total
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of period |  | $ | 21,316 |  |  | $ | 8,562 |  |  | $ | 18,437 |  |  | $ | 7,292 |  |  | $ | 36,663 |  |  | $ | 28,258 |  |  | $ | 24,821 |  |  | $ | 7,976 |  |  | $ | 2,215 |  |  | $ | 155,540 |
Charge-offs |  | 2,123 |  |  | — |  |  | 2,366 |  |  | — |  |  | 485 |  |  | 1,407 |  |  | 10 |  |  | 49 |  |  | 1,029 |  |  | 7,469 |
Recoveries |  | 893 |  |  | — |  |  | 1,507 |  |  | — |  |  | 565 |  |  | 307 |  |  | 59 |  |  | 19 |  |  | 192 |  |  | 3,542 |
Net charge-offs (recoveries) |  | 1,230 |  |  | — |  |  | 859 |  |  | — |  |  | (80) |  |  | 1,100 |  |  | (49) |  |  | 30 |  |  | 837 |  |  | 3,927 |
Provision (recovery of provision) |  | 1,346 |  |  | 2,065 |  |  | 3,418 |  |  | (590) |  |  | (506) |  |  | 2,218 |  |  | (8) |  |  | 982 |  |  | 892 |  |  | 9,817 |
Balance, end of period |  | $ | 21,432 |  |  | $ | 10,627 |  |  | $ | 20,996 |  |  | $ | 6,702 |  |  | $ | 36,237 |  |  | $ | 29,376 |  |  | $ | 24,862 |  |  | $ | 8,928 |  |  | $ | 2,270 |  |  | $ | 161,430 |
September 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of period |  | $ | 17,385 |  |  | $ | 6,610 |  |  | $ | 16,858 |  |  | $ | 8,965 |  |  | $ | 37,653 |  |  | $ | 26,510 |  |  | $ | 23,690 |  |  | $ | 7,698 |  |  | $ | 2,183 |  |  | $ | 147,552 |
Charge-offs |  | 9,115 |  |  | — |  |  | 318 |  |  | — |  |  | 68 |  |  | 598 |  |  | — |  |  | 13 |  |  | 935 |  |  | 11,047 |
Recoveries |  | 356 |  |  | — |  |  | 2,281 |  |  | — |  |  | 1,063 |  |  | 1,434 |  |  | 722 |  |  | 24 |  |  | 180 |  |  | 6,060 |
Net charge-offs (recoveries) |  | 8,759 |  |  | — |  |  | (1,963) |  |  | — |  |  | (995) |  |  | (836) |  |  | (722) |  |  | (11) |  |  | 755 |  |  | 4,987 |
Provision (recovery of provision) |  | 11,036 |  |  | 1,347 |  |  | (866) |  |  | (303) |  |  | (2,936) |  |  | 677 |  |  | (145) |  |  | 128 |  |  | 821 |  |  | 9,759 |
Balance, end of period |  | $ | 19,662 |  |  | $ | 7,957 |  |  | $ | 17,955 |  |  | $ | 8,662 |  |  | $ | 35,712 |  |  | $ | 28,023 |  |  | $ | 24,267 |  |  | $ | 7,837 |  |  | $ | 2,249 |  |  | $ | 152,324 |
Schedule of changes in allowance for credit losses on unfunded loan commitments | The following table shows the changes in the liability for credit losses on unfunded loan commitments.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(Dollars in thousands) | 2025 |  | 2024 |  | 2025 |  | 2024
Balance, beginning of period | $ | 7,944 |  |  | $ | 8,694 |  |  | $ | 6,985 |  |  | $ | 8,182 |
Provision (recovery of provision) | 1,075 |  |  | (1,385) |  |  | 2,034 |  |  | (873) |
Balance, end of period | $ | 9,019 |  |  | $ | 7,309 |  |  | $ | 9,019 |  |  | $ | 7,309 |

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- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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