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Revenue from Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2025
Revenue from Contract with Customer [Abstract] |
Summary of Noninterest Income (Loss) Disaggregated by Reportable Operating Segment and Revenue Stream | The following tables present noninterest income (loss) disaggregated by reportable operating segment and revenue stream for the periods presented ($ in thousands):
|  | Three Months Ended June 30, 2025 |  |  | Three Months Ended June 30, 2024 |
|  | Topic 606 |  |  | Not Topic 606 (1) |  |  | Total |  |  | Topic 606 |  |  | Not Topic 606 (1) |  |  | Total |
General Banking Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service charges on deposit accounts |  | $ | 10,562 |  |  | $ | — |  |  | $ | 10,562 |  |  | $ | 10,903 |  |  | $ | — |  |  | $ | 10,903 |
Bank card and other fees |  |  | 7,968 |  |  |  | 748 |  |  |  | 8,716 |  |  |  | 8,428 |  |  |  | 758 |  |  |  | 9,186 |
Mortgage banking, net |  |  | — |  |  |  | 8,602 |  |  |  | 8,602 |  |  |  | — |  |  |  | 4,204 |  |  |  | 4,204 |
Wealth management |  |  | 196 |  |  |  | — |  |  |  | 196 |  |  |  | 174 |  |  |  | — |  |  |  | 174 |
Other, net |  |  | 2,388 |  |  |  | (224 | ) |  |  | 2,164 |  |  |  | 7,251 |  |  |  | 78 |  |  |  | 7,329 |
Securities gains (losses), net |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (182,792 | ) |  |  | (182,792 | )
Total noninterest income (loss) |  | $ | 21,114 |  |  | $ | 9,126 |  |  | $ | 30,240 |  |  | $ | 26,756 |  |  | $ | (177,752 | ) |  | $ | (150,996 | )
Wealth Management Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service charges on deposit accounts |  | $ | 23 |  |  | $ | — |  |  | $ | 23 |  |  | $ | 21 |  |  | $ | — |  |  | $ | 21 |
Bank card and other fees |  |  | 38 |  |  |  | — |  |  |  | 38 |  |  |  | 39 |  |  |  | — |  |  |  | 39 |
Wealth management |  |  | 9,442 |  |  |  | — |  |  |  | 9,442 |  |  |  | 9,518 |  |  |  | — |  |  |  | 9,518 |
Other, net |  |  | 54 |  |  |  | 93 |  |  |  | 147 |  |  |  | 38 |  |  |  | 94 |  |  |  | 132 |
Total noninterest income (loss) |  | $ | 9,557 |  |  | $ | 93 |  |  | $ | 9,650 |  |  | $ | 9,616 |  |  | $ | 94 |  |  | $ | 9,710 |
Consolidated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service charges on deposit accounts |  | $ | 10,585 |  |  | $ | — |  |  | $ | 10,585 |  |  | $ | 10,924 |  |  | $ | — |  |  | $ | 10,924 |
Bank card and other fees |  |  | 8,006 |  |  |  | 748 |  |  |  | 8,754 |  |  |  | 8,467 |  |  |  | 758 |  |  |  | 9,225 |
Mortgage banking, net |  |  | — |  |  |  | 8,602 |  |  |  | 8,602 |  |  |  | — |  |  |  | 4,204 |  |  |  | 4,204 |
Wealth management |  |  | 9,638 |  |  |  | — |  |  |  | 9,638 |  |  |  | 9,692 |  |  |  | — |  |  |  | 9,692 |
Other, net |  |  | 2,442 |  |  |  | (131 | ) |  |  | 2,311 |  |  |  | 7,289 |  |  |  | 172 |  |  |  | 7,461 |
Securities gains (losses), net |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (182,792 | ) |  |  | (182,792 | )
Total noninterest income (loss) |  | $ | 30,671 |  |  | $ | 9,219 |  |  | $ | 39,890 |  |  | $ | 36,372 |  |  | $ | (177,658 | ) |  | $ | (141,286 | )
(1) Noninterest income (loss) not in scope for FASB ASC Topic 606 includes customer derivatives revenue and miscellaneous credit card fee income within bank card and other fees; mortgage banking, net; amortization of tax credits, cash surrender value on various life insurance policies, earnings on Trustmark’s non-qualified deferred compensation plans, other partnership investments and rental income within other, net; and securities gains (losses), net.
|  | Six Months Ended June 30, 2025 |  |  | Six Months Ended June 30, 2024 |
|  | Topic 606 |  |  | Not Topic 606 (1) |  |  | Total |  |  | Topic 606 |  |  | Not Topic 606 (1) |  |  | Total |
General Banking Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service charges on deposit accounts |  | $ | 21,177 |  |  | $ | — |  |  | $ | 21,177 |  |  | $ | 21,839 |  |  | $ | — |  |  | $ | 21,839 |
Bank card and other fees |  |  | 15,348 |  |  |  | 993 |  |  |  | 16,341 |  |  |  | 15,620 |  |  |  | 958 |  |  |  | 16,578 |
Mortgage banking, net |  |  | — |  |  |  | 17,373 |  |  |  | 17,373 |  |  |  | — |  |  |  | 13,119 |  |  |  | 13,119 |
Wealth management |  |  | 377 |  |  |  | — |  |  |  | 377 |  |  |  | 363 |  |  |  | — |  |  |  | 363 |
Other, net |  |  | 7,801 |  |  |  | 185 |  |  |  | 7,986 |  |  |  | 10,599 |  |  |  | (304 | ) |  |  | 10,295 |
Securities gains (losses), net |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (182,792 | ) |  |  | (182,792 | )
Total noninterest income (loss) |  | $ | 44,703 |  |  | $ | 18,551 |  |  | $ | 63,254 |  |  | $ | 48,421 |  |  | $ | (169,019 | ) |  | $ | (120,598 | )
Wealth Management Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service charges on deposit accounts |  | $ | 44 |  |  | $ | — |  |  | $ | 44 |  |  | $ | 43 |  |  | $ | — |  |  | $ | 43 |
Bank card and other fees |  |  | 77 |  |  |  | — |  |  |  | 77 |  |  |  | 75 |  |  |  | — |  |  |  | 75 |
Wealth management |  |  | 18,804 |  |  |  | — |  |  |  | 18,804 |  |  |  | 18,281 |  |  |  | — |  |  |  | 18,281 |
Other, net |  |  | 106 |  |  |  | 189 |  |  |  | 295 |  |  |  | 80 |  |  |  | 188 |  |  |  | 268 |
Total noninterest income (loss) |  | $ | 19,031 |  |  | $ | 189 |  |  | $ | 19,220 |  |  | $ | 18,479 |  |  | $ | 188 |  |  | $ | 18,667 |
Consolidated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service charges on deposit accounts |  | $ | 21,221 |  |  | $ | — |  |  | $ | 21,221 |  |  | $ | 21,882 |  |  | $ | — |  |  | $ | 21,882 |
Bank card and other fees |  |  | 15,425 |  |  |  | 993 |  |  |  | 16,418 |  |  |  | 15,695 |  |  |  | 958 |  |  |  | 16,653 |
Mortgage banking, net |  |  | — |  |  |  | 17,373 |  |  |  | 17,373 |  |  |  | — |  |  |  | 13,119 |  |  |  | 13,119 |
Wealth management |  |  | 19,181 |  |  |  | — |  |  |  | 19,181 |  |  |  | 18,644 |  |  |  | — |  |  |  | 18,644 |
Other, net |  |  | 7,907 |  |  |  | 374 |  |  |  | 8,281 |  |  |  | 10,679 |  |  |  | (116 | ) |  |  | 10,563 |
Securities gains (losses), net |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (182,792 | ) |  |  | (182,792 | )
Total noninterest income (loss) |  | $ | 63,734 |  |  | $ | 18,740 |  |  | $ | 82,474 |  |  | $ | 66,900 |  |  | $ | (168,831 | ) |  | $ | (101,931 | )
(1) Noninterest income (loss) not in scope for FASB ASC Topic 606 includes customer derivatives revenue and miscellaneous credit card fee income within bank card and other fees; mortgage banking, net; amortization of tax credits, cash surrender value on various life insurance policies, earnings on Trustmark’s non-qualified deferred compensation plans, other partnership investments and rental income within other, net; and securities gains (losses), net.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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