CONDENSED FINANCIAL INFORMATION OF AMERIS BANCORP (PARENT COMPANY ONLY) - Schedule of Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income
Securities gains	$ 24	$ 0	$ 270
Total interest income	1,378,284	1,280,435	893,886
Expense
Interest expense	529,094	445,391	92,860
Other expense	50,989	43,324	45,993
Income tax benefit	(117,175)	(87,830)	(106,558)
Net income	358,685	269,105	346,540
Ameris Bancorp
Income
Dividends from subsidiaries	149,000	175,000	50,000
Other income	347	462	175
Total interest income	149,371	175,462	50,445
Expense
Interest expense	22,504	24,568	22,170
Other expense	18,651	13,858	11,154
Total noninterest expense	41,155	38,426	33,324
Income before income tax expense	108,216	137,036	17,121
Income tax benefit	9,586	10,738	8,553
Income before equity in undistributed income of subsidiaries	117,802	147,774	25,674
Equity in undistributed income of subsidiaries	240,883	121,331	320,866
Net income	$ 358,685	$ 269,105	$ 346,540