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Note 22 - Segments - Financial Information by Business Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Net interest income | $ 61,315 |  |  | $ 62,376 |  |  | $ 185,316 | $ 168,120 |
Provision for credit losses | 2,775 |  |  | 4,803 |  |  | 7,750 | 6,882 |
All other non-interest income | 12,866 |  |  | 15,712 |  |  | 38,100 | 39,117 |
Non-interest expenses | 46,702 |  |  | 44,873 |  |  | 137,816 | 145,845 |
Income before income tax expense | 34,734 |  |  | 37,564 |  |  | 107,553 | 81,400 |
Income tax expense | 7,642 |  |  | 9,024 |  |  | 23,749 | 18,016 |
Net income | 27,092 | $ 27,664 | $ 29,048 | 28,540 | $ 26,902 | $ 7,942 | 83,804 | 63,384 |
Less net income attributed to NCI | 0 |  |  | 85 |  |  | 0 | 229 |
Net income available to stockholders | 27,092 |  |  | 28,455 |  |  | 83,804 | 63,155 |
Segment assets | 7,903,430 |  |  | 7,554,210 |  |  | 7,903,430 | 7,554,210 | $ 7,496,261
Fiduciary and Trust [Member] |  |  |  |  |  |  |  |  |
Wealth management and trust services | 10,030 |  |  | 9,152 |  |  | 29,703 | 26,890 |
Commercial Banking [Member] |  |  |  |  |  |  |  |  |
Net interest income | 61,155 |  |  | 62,270 |  |  | 184,895 | 167,811 |
Provision for credit losses | 2,775 |  |  | 4,803 |  |  | 7,750 | 6,882 |
All other non-interest income | 12,866 |  |  | 15,712 |  |  | 38,100 | 39,117 |
Non-interest expenses | 41,788 |  |  | 39,370 |  |  | 121,265 | 129,936 |
Income before income tax expense | 29,458 |  |  | 33,809 |  |  | 93,980 | 70,110 |
Income tax expense | 6,497 |  |  | 8,209 |  |  | 20,804 | 15,566 |
Net income | 22,961 |  |  | 25,600 |  |  | 73,176 | 54,544 |
Less net income attributed to NCI | 0 |  |  | 85 |  |  | 0 | 229 |
Net income available to stockholders | 22,961 |  |  | 25,515 |  |  | 73,176 | 54,315 |
Segment assets | 7,867,626 |  |  | 7,522,113 |  |  | 7,867,626 | 7,522,113 |
Commercial Banking [Member] | Fiduciary and Trust [Member] |  |  |  |  |  |  |  |  |
Wealth management and trust services | 0 |  |  | 0 |  |  | 0 | 0 |
Investment Management and Trust [Member] |  |  |  |  |  |  |  |  |
Net interest income | 160 |  |  | 106 |  |  | 421 | 309 |
Provision for credit losses | 0 |  |  | 0 |  |  | 0 | 0 |
All other non-interest income | 0 |  |  | 0 |  |  | 0 | 0 |
Non-interest expenses | 4,914 |  |  | 5,503 |  |  | 16,551 | 15,909 |
Income before income tax expense | 5,276 |  |  | 3,755 |  |  | 13,573 | 11,290 |
Income tax expense | 1,145 |  |  | 815 |  |  | 2,945 | 2,450 |
Net income | 4,131 |  |  | 2,940 |  |  | 10,628 | 8,840 |
Less net income attributed to NCI | 0 |  |  | 0 |  |  | 0 | 0 |
Net income available to stockholders | 4,131 |  |  | 2,940 |  |  | 10,628 | 8,840 |
Segment assets | 35,804 |  |  | 32,097 |  |  | 35,804 | 32,097 |
Investment Management and Trust [Member] | Fiduciary and Trust [Member] |  |  |  |  |  |  |  |  |
Wealth management and trust services | $ 10,030 |  |  | $ 9,152 |  |  | $ 29,703 | $ 26,890 |

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