CONDENSED FINANCIAL INFORMATION OF AMERIS BANCORP (PARENT COMPANY ONLY) - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income
Total interest income	$ 703,112	$ 726,503	$ 636,394
Expense
Interest expense	47,785	88,750	131,228
Other expense	53,148	54,870	42,667
Income before income tax expense	496,112	340,244	211,584
Income tax benefit	(119,199)	(78,256)	(50,143)
Net income	376,913	261,988	161,441
Ameris Bancorp
Income
Dividends from subsidiaries	142,000	93,000	67,200
Other income	101	910	493
Total interest income	142,101	93,910	67,693
Expense
Interest expense	19,610	17,616	16,264
Other expense	13,031	8,300	12,199
Total noninterest expense	32,641	25,916	28,463
Income before income tax expense	109,460	67,994	39,230
Income tax benefit	6,878	5,225	5,603
Income before equity in undistributed income of subsidiaries	116,338	73,219	44,833
Equity in undistributed income of subsidiaries	260,575	188,769	116,608
Net income	$ 376,913	$ 261,988	$ 161,441