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v3.25.4

Other Real Estate | 12 Months Ended
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Dec. 31, 2025
Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract] |
Other Real Estate | Note 8 – Other Real Estate At December 31, 2025, Trustmark’s geographic other real estate distribution was primarily concentrated in its Alabama, Mississippi Tennessee and Texas market regions. The ultimate recovery of a substantial portion of the carrying amount of other real estate is susceptible to changes in market conditions in these regions. For the periods presented, changes and gains (losses), net on other real estate were as follows ($ in thousands):
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Balance at beginning of period |  | $ | 5,917 |  |  | $ | 6,867 |  |  | $ | 1,986 |
Additions |  |  | 8,471 |  |  |  | 6,782 |  |  |  | 7,237 |
Disposals |  |  | (6,739 | ) |  |  | (6,084 | ) |  |  | (2,555 | )
(Write-downs) recoveries |  |  | (692 | ) |  |  | (1,648 | ) |  |  | 199 |
Balance at end of period |  | $ | 6,957 |  |  | $ | 5,917 |  |  | $ | 6,867 |
Gains (losses), net on the sale of other real estate included in other real estate expense |  | $ | (1,759 | ) |  | $ | (1,104 | ) |  | $ | (145 | )
At December 31, 2025 and 2024, other real estate by type of property consisted of the following ($ in thousands):
|  | December 31, |
|  | 2025 |  |  | 2024 |
Construction, land development and other land properties |  | $ | 63 |  |  | $ | 46 |
1-4 family residential properties |  |  | 3,871 |  |  |  | 2,260 |
Nonfarm, nonresidential properties |  |  | 1,273 |  |  |  | 3,611 |
Other real estate properties |  |  | 1,750 |  |  |  | — |
Total other real estate |  | $ | 6,957 |  |  | $ | 5,917 |
At December 31, 2025 and 2024, other real estate by geographic location of where the loan was originated consisted of the following ($ in thousands):
|  | December 31, |
|  | 2025 |  |  | 2024 |
Alabama |  | $ | 409 |  |  | $ | 170 |
Mississippi (1) |  |  | 5,621 |  |  |  | 2,407 |
Tennessee (2) |  |  | 927 |  |  |  | 1,079 |
Texas |  |  | — |  |  |  | 2,261 |
Total other real estate |  | $ | 6,957 |  |  | $ | 5,917 |
(1) Mississippi includes Central and Southern Mississippi Regions. (2) Tennessee includes Memphis, Tennessee and Northern Mississippi Regions. At December 31, 2025 and 2024, the balance of other real estate included $3.9 million and $2.3 million, respectively, of foreclosed residential real estate properties recorded as a result of obtaining physical possession of the property. At December 31, 2025 and 2024, the recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process was $8.1 million and $7.6 million, respectively.

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- Definition Entire disclosure for other real estate and covered other real estate. + References No definition available. + Details
Name: | trmk_OtherRealEstateTextBlock
Namespace Prefix: | trmk_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_OtherRealEstateAndForeclosedAssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration