BASIS OF PRESENTATION AND ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business Ameris Bancorp (the “Company” or “Ameris”) is a financial holding company headquartered in Atlanta, Georgia. Ameris conducts substantially all of its operations through its wholly owned banking subsidiary, Ameris Bank (the “Bank”). At June 30, 2022, the Bank operated 164 branches in select markets in Georgia, Alabama, Florida, North Carolina and South Carolina. Our business model capitalizes on the efficiencies of a large financial services company, while still providing the community with the personalized banking service expected by our customers. We manage our Bank through a balance of decentralized management responsibilities and efficient centralized operating systems, products and loan underwriting standards. The Company’s Board of Directors and senior managers establish corporate policy, strategy and administrative policies. Within our established guidelines and policies, the banker closest to the customer responds to the differing needs and demands of his or her unique market.
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements for Ameris have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and Regulation S-X. Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statement presentation. The interim consolidated financial statements included herein are unaudited but reflect all adjustments, consisting of normal recurring adjustments, which, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the interim periods presented. All significant intercompany accounts and transactions have been eliminated in consolidation. The results of operations for the three and six month periods ended June 30, 2022 are not necessarily indicative of the results to be expected for the full year. These financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. In preparing the consolidated financial statements in conformity with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Cash and Cash Equivalents	Cash and Cash EquivalentsFor purposes of reporting cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest-bearing deposits in banks, federal funds sold and restricted cash. Restricted cash held for securitization investors, which are reported on the Company's consolidated balance sheets in cash and due from banks, was $0 and $43.0 million at June 30, 2022 and December 31, 2021, respectively.
Reclassifications	ReclassificationsCertain reclassifications of prior year amounts have been made to conform with the current year presentations. The reclassifications had no effect on net income or shareholders' equity as previously reported.
Accounting Standards Pending Adoption	Accounting Standards Pending Adoption ASU No. 2022-02 – Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures ("ASU 2022-02"). ASU 2022-02 eliminates the troubled debt restructuring ("TDR") measurement and recognition guidance and requires that entities evaluate whether the modification represents a new loan or a continuation of an existing loan consistent with the accounting for other loan modifications. Additional disclosures relating to modifications to borrowers experiencing financial difficulty are required under ASU 2022-02. ASU 2022-02 also requires disclosure of current-period gross write-offs by year of origination. ASU 2022-02 is effective for annual periods beginning after December 15, 2022, including interim periods within those fiscal years. The amendments of ASU 2022-02 should be adopted prospectively. The amendments related to the recognition and measurement of TDRs may optionally be adopted using a modified retrospective transition method. Early adoption is permitted. The Company is currently evaluating the impact on the consolidated financial statements of adopting ASU 2022-02. ASU No. 2021-01 – Reference Rate Reform (Topic 848): Scope ("ASU 2021-01"). ASU 2021-01 clarifies that certain optional expedients and exceptions in ASC 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. ASU 2021-01 also amends the expedients and exceptions in ASC 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. Because the guidance is intended to assist stakeholders during the global market-wide reference rate transition period, it is in effect for a limited time, from March 12, 2020 through December 31, 2022. The Company is currently evaluating the impact on the consolidated financial statements of adopting ASU 2021-01. ASU No. 2020-04 – Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04"). ASU 2020-04 provides optional guidance, for a limited time, to ease the potential burden in accounting for or recognizing the effects of reference rate reform on financial reporting. The amendments, which are elective, provide expedients and exceptions for applying GAAP to contract modifications and hedging relationships affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference LIBOR or another reference rate that is expected to be discontinued due to reference rate reform. The optional expedients for contract modifications apply consistently for all contracts or transactions within the relevant Codification Topic, Subtopic, or Industry Subtopic that contains the guidance that otherwise would be required to be applied, while those for hedging relationships can be elected on an individual hedging relationship basis. Because the guidance is intended to assist stakeholders during the global market-wide reference rate transition period, it is in effect for a limited time, from March 12, 2020 through December 31, 2022. The Company has established a working committee with representatives from relevant functional areas to inventory the contracts and accounts that are tied to LIBOR and develop a transition plan for the affected items. The Company is currently evaluating the impact on the consolidated financial statements of adopting ASU 2020-04.