CONDENSED FINANCIAL INFORMATION OF AMERIS BANCORP (PARENT COMPANY ONLY) - Schedule of Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Cash and due from banks	$ 244,980	$ 230,470
Other assets	502,143	454,603
Total assets	26,262,050	25,203,699	$ 25,053,286
Liabilities
Other liabilities	363,983	428,542
Other borrowings	291,788	509,586
Subordinated deferrable interest debentures	132,309	130,315
Total liabilities	22,510,528	21,776,952
Shareholders' equity	3,751,522	3,426,747	$ 3,197,400	$ 2,966,451
Total liabilities and shareholders’ equity	26,262,050	25,203,699
Ameris Bancorp
Assets
Cash and due from banks	141,836	165,179
Investment in subsidiaries	3,857,797	3,611,093
Other assets	29,920	29,898
Total assets	4,029,553	3,806,170
Liabilities
Other liabilities	36,883	33,766
Other borrowings	108,839	215,342
Subordinated deferrable interest debentures	132,309	130,315
Total liabilities	278,031	379,423
Shareholders' equity	3,751,522	3,426,747
Total liabilities and shareholders’ equity	$ 4,029,553	$ 3,806,170