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Goodwill and Core Deposit Intangibles (Tables) | 6 Months Ended
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Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Core Deposit Intangibles | Changes in the carrying amount of the Company’s goodwill and core deposit intangibles for the six months ended June 30, 2025 and the year ended December 31, 2024 were as follows:
|  | Goodwill |  |  | Core Deposit Intangibles |
|  | (Dollars in thousands) |
Balance as of December 31, 2023 |  | $ | 3,396,086 |  |  | $ | 63,994 |
Less: |  |  |  |  |  |
Amortization |  |  | — |  |  |  | (15,670 | )
Add: |  |  |  |  |  |
Measurement period adjustment of First Bancshares merger |  |  | 316 |  |  |  | — |
Lone Star merger |  |  | 106,727 |  |  |  | 17,723 |
Balance as of December 31, 2024 |  |  | 3,503,129 |  |  |  | 66,047 |
Less: |  |  |  |  |  |
Amortization |  |  | — |  |  |  | (7,251 | )
Add: |  |  |  |  |  |
Measurement period adjustment of Lone Star merger |  |  | (2 | ) |  |  | — |
Balance as of June 30, 2025 |  | $ | 3,503,127 |  |  | $ | 58,796 |
Estimated Aggregate Future Amortization Expense for Core Deposit Intangibles | The estimated aggregate future amortization expense for core deposit intangibles remaining as of June 30, 2025 is as follows (dollars in thousands):
Remaining 2025 |  | $ | 7,190 |
2026 |  |  | 12,763 |
2027 |  |  | 11,262 |
2028 |  |  | 9,958 |
2029 |  |  | 7,610 |
Thereafter |  |  | 10,013 |
Total |  | $ | 58,796 |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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