Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Related Party and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Document Information [Line Items] Document Information [Line Items] EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] EBP: 58-1111076 001 EBP: 58-1456434 002 [Member] Member representing the AMERIS BANCORP 401(K) PROFIT SHARING PLAN (EIN 58-1456434, Plan No. 002). EBP, Description of Plan and Accounting Change [Abstract] ABCB:EmployerContributionPercentageVestingPerYear ABCB:EBP:EmployerContributionPercentageVestingPerYear Indicates the percentage of employer contributions vested per year under a graded vesting schedule. EBP, Allocation Status [Domain] EBP, Allocation Status [Domain] EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Investment Type [Axis] Investment Type [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Tax Status EBP, Tax Status [Text Block] EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Fully Benefit-Responsive Investment Contract EBP, Fully Benefit-Responsive Investment Contract [Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] EBP, Tax Qualification Status [Extensible Enumeration] EBP, Tax Qualification Status [Extensible Enumeration] EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Text Block] ABCB:EBPTerminationVestedBalanceToRollAccount ABCB:EBPTerminationVestedBalanceToRollAccount Amount of vested balance at termination in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) to roll account. EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Note Receivable from Participant, Allowance for Credit Loss EBP, Note Receivable from Participant, Allowance for Credit Loss EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Noncash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Noncash EBP, Expense EBP, Expense [Policy Text Block] EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Traditional Guaranteed Investment Contract EBP, Traditional Guaranteed Investment Contract [Member] EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Measurement Input Type [Domain] Measurement Input Type [Domain] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Employer Contribution, Receivable EBP, Employer Contribution, Receivable EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Payment to Participant EBP, Payment to Participant [Policy Text Block] EBP, Participant-Directed and Nonparticipant-Directed Status [Domain] EBP, Participant-Directed and Nonparticipant-Directed Status [Domain] EBP, Net Asset Available for Benefit EBP, Net Asset Available for Benefit EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Employer, Common Stock EBP, Employer, Common Stock [Member] EBP, Participant Contribution, Automatic, Deferral Rate EBP, Participant Contribution, Automatic, Deferral Rate Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Tax Status [Abstract] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Cover [Abstract] Maximum Maximum [Member] EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] Minimum Minimum [Member] Current Fiscal Year End Date Current Fiscal Year End Date EBP, Schedule of Asset Held for Investment [Abstract] Entity [Domain] Entity [Domain] EBP, Asset Held for Investment EBP, Asset Held for Investment Investment, Identifier [Axis] Investment, Identifier [Axis] Document Fiscal Year Focus Document Fiscal Year Focus EBP, Allocation Status [Axis] EBP, Allocation Status [Axis] EBP, Tax Determination Letter, Obtained [true false] EBP, Tax Determination Letter, Obtained [true false] EBP, Investment, Fair Value and NAV [Abstract] EBP, Investment, Fair Value and NAV [Abstract] EBP, Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Employer Contribution, Matching Percentage EBP, Employer Contribution, Matching Percentage Text Block [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual Fund Mutual Fund [Member] EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Investment EBP, Investment [Policy Text Block] EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Amendment Flag Amendment Flag EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense EBP, Change in Net Asset Available for Benefit, Decrease EBP, Change in Net Asset Available for Benefit, Decrease EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Plan Termination EBP, Plan Termination [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Measurement Input Type [Axis] Measurement Input Type [Axis] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Forfeited Nonvested Account EBP, Forfeited Nonvested Account EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] EBP, Forfeited Nonvested Account, Decrease from Administrative Expense EBP, Forfeited Nonvested Account, Decrease from Employer Contribution EBP, Statement of Net Asset Available for Benefit [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus EBP, Description of Plan EBP, Description of Plan [Text Block] EBP, Summary of Accounting Policy EBP, Summary of Accounting Policy [Text Block] Document Period End Date Document Period End Date EBP, Note Receivable from Participant EBP, Note Receivable from Participant [Policy Text Block] EBP, Change in Net Asset Available for Benefit, Increase EBP, Change in Net Asset Available for Benefit, Increase EBP, Participant-Directed and Nonparticipant-Directed Status [Axis] EBP, Participant-Directed and Nonparticipant-Directed Status [Axis] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Entity Central Index Key Entity Central Index Key EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Legal Entity [Axis] Legal Entity [Axis] Entity Tax Identification Number Entity Tax Identification Number EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Pooled Separate Account EBP, Pooled Separate Account [Member] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Plan Number EBP, Plan Number EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Issuer Name [Extensible Enumeration] Document Type Document Type EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Use of Estimate EBP, Use of Estimate [Policy Text Block] EBP, Fully Benefit-Responsive Investment Contract [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] ABCB:EBP:MinimumAgeOfParticipants ABCB:EBP:MinimumAgeOfParticipants The minimum age of participants in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value [Abstract] EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value [Abstract] EBP, Note Receivable from Participant EBP, Note Receivable from Participant EBP, Schedule of Asset Held for Investment EBP, Schedule of Asset Held for Investment [Table Text Block] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Unrealized Gain (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Investments [Domain] Investments [Domain] Document Information [Table] Document Information [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Risk and Uncertainty [Abstract] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Entity Registrant Name Entity Registrant Name ABCB:EBPYearFullyVested ABCB:EBPYearsUntilFullyVested ABCB:EBPYearsUntilFullyVested EBP, Subsequent Event EBP, Subsequent Event [Text Block] EBP, Tax Status [Table] EBP, Tax Status [Table] EBP, Investment, Excluding Plan Interest in Master Trust, Cost EBP, Investment, Excluding Plan Interest in Master Trust, Cost EBP, Receivable EBP, Receivable EBP, Risk and Uncertainty EBP, Risk and Uncertainty [Text Block] EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage