Mergers and Acquisitions - Schedule of Allocation of the Consideration to Net Assets Acquired (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 01, 2025	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Purchase Price:
Goodwill resulting from merger		$ 350,353	$ 242,561	$ 242,561
Southern States Bancshares, Inc.
Purchase Price:
Net shares issued (in shares)	8,124,241
Purchase price per share (in dollars per share)	$ 45.30
Value of stock consideration	$ 368,028
Cash consideration for outstanding stock options and fractional shares	327
Total purchase price	368,355
Fair value of net assets acquired	260,563
Goodwill resulting from merger	$ 107,792