v3.26.3
Mergers and Acquisitions - Schedule of Unaudited Pro Forma Financial Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Business Combination, Pro Forma Information [Line Items]        
Provision expense for credit losses on acquired loans and unfunded commitments $ 1,424 $ 34,417 $ 14,564 $ 42,046
Net interest income   143,783   419,954
Total revenues   170,418   426,430
Net income attributable to FB Financial Corporation   41,977   $ 90,846
Southern States Bancshares, Inc.        
Business Combination, Pro Forma Information [Line Items]        
Provision expense for credit losses on acquired loans and unfunded commitments   $ 28,366