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Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Summary of loans, by loan type
Total loans	$ 9,400,969	$ 8,809,826
Commercial, financial and agricultural
Summary of loans, by loan type
Total loans	5,824,284	5,089,721
Real estate - mortgage
Summary of loans, by loan type
Total loans	1,057,166	999,313
Commercial real estate
Summary of loans, by loan type
Total loans	2,226,013	2,484,454
Consumer
Summary of loans, by loan type
Total loans	50,741	49,777
Foreign
Summary of loans, by loan type
Total loans	$ 242,765	$ 186,561

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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