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Goodwill and Core Deposit Intangibles (Tables)
 9 Months Ended
Sep. 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 nine months ended September 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

 

 

—

 

 

 

(10,853

)

Add:

 

 

 

 

 

 

Measurement period adjustment of Lone Star merger

 

 

(2

)

 

 

—

 

Balance as of September 30, 2025

 

$

3,503,127

 

 

$

55,194

 
Estimated Aggregate Future Amortization Expense for Core Deposit Intangibles The estimated aggregate future amortization expense for core deposit intangibles remaining as of September 30, 2025, is as follows (dollars in thousands):

 

Remaining 2025

 

$

3,589

 

2026

 

 

12,763

 

2027

 

 

11,262

 

2028

 

 

9,958

 

2029

 

 

7,609

 

Thereafter

 

 

10,013

 

Total

 

$

55,194