CONDENSED FINANCIAL INFORMATION OF AMERIS BANCORP (PARENT COMPANY ONLY) - Schedule of Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income
Securities gains	$ 0	$ 270	$ 0
Total interest income	1,280,435	893,886	703,112
Expense
Interest expense	445,391	92,860	47,785
Other expense	43,106	45,544	53,148
Income tax benefit	(87,830)	(106,558)	(119,199)
Net income	269,105	346,540	376,913
Ameris Bancorp
Income
Dividends from subsidiaries	175,000	50,000	142,000
Other income	462	175	101
Total interest income	175,462	50,445	142,101
Expense
Interest expense	24,568	22,170	19,610
Other expense	13,858	11,154	13,031
Total noninterest expense	38,426	33,324	32,641
Income before income tax expense	137,036	17,121	109,460
Income tax benefit	10,738	8,553	6,878
Income before equity in undistributed income of subsidiaries	147,774	25,674	116,338
Equity in undistributed income of subsidiaries	121,331	320,866	260,575
Net income	$ 269,105	$ 346,540	$ 376,913