Document and Entity Information [Abstract] EBP, Statement of Net Asset Available for Benefit [Table] Legal Entity [Axis] Entity [Domain] Represents the Retirement Plan No. 003. E B P 003 [Member] 401(k) Retirement Savings Plan EBP, Statement of Net Asset Available for Benefit [Line Items] Statements of Net Assets Available for Benefits Document Type Document Period End Date Entity Registrant Name Entity Central Index Key Amendment Flag Statements of Net Assets Available for Benefits EBP, Asset [Abstract] ASSETS EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Total investments, at fair value Value of shares held EBP, Receivable [Abstract] Receivables: EBP, Employer Contribution, Receivable Employer contributions EBP, Note Receivable from Participant Notes receivable from participants EBP, Receivable Total receivables EBP, Asset Total assets EBP, Net Asset Available for Benefit Balance, end of year Balance, beginning of year Net assets available for benefits Statement of Changes in Net Assets Available for Benefits EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statement of Changes in Net Assets Available for Benefits EBP, Net Asset Available for Benefit [Abstract] Net assets available for benefits: Description of Plan EBP, Description of Plan [Table] EBP, Description of Plan [Line Items] Description of Plan Plan Termination EBP, Description of Plan [Text Block] Description of Plan Summary of Significant Accounting Policies EBP, Accounting Policy [Table] EBP, Accounting Policy [Line Items] Summary of Significant Accounting Policies Investments EBP, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policies Related Party Transactions EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Line Items] Related Party Transactions Exempt Party-In-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Related Party Transactions No definition available. Employee Benefit Plan, Plan Termination [Abstract] EBP, Plan Termination [Text Block] Plan Termination Tax Status EBP, Tax Status [Table] EBP, Tax Status [Line Items] Tax Status EBP, Tax Status [Text Block] Tax Status No definition available. Employee Benefit Plan, Exempt Party In Interest Transactions [Abstract] The entire disclosure for exempt party-in-interest transactions. Employee Benefit Plan, Exempt Party In Interest Transactions [Text Block] Exempt Party-In-Interest Transactions No definition available. Exempt Party In Interest Transactions [Abstract] The entire disclosure for description about investments. Employee Benefit Plan, Investments [Text Block] Investments Fair Value Measurements EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Line Items] Fair Value Measurements Net Asset Value Per Share EBP, Investment, Fair Value and NAV [Text Block] Fair Value Measurements No definition available. Net Asset Value Per Share The entire disclosure for net asset value per share. Net Asset Value Per Share [Text Block] Net Asset Value Per Share Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Line Items] Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Basis of Accounting [Policy Text Block] Basis of Accounting EBP, Use of Estimate [Policy Text Block] Estimates Disclosure of accounting policy for income recognition and investment valuation held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Investment Valuation and Income Recognition [Policy Text Block] Investment Valuation and Income Recognition EBP, Payment to Participant [Policy Text Block] Payment of Benefits and Withdrawals EBP, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants EBP, Contribution [Policy Text Block] Contributions EBP, Risk and Uncertainty [Policy Text Block] Risks and Uncertainties EBP, Investment, Fair Value and NAV [Table Text Block] Schedule of Plan's Assets Fair Value Hierarchy The entire tabular disclosure for net asset value per share. Net Asset Value Per Share [Table Text Block] Schedule of Plan's investments with a reported estimated fair value using net asset value per share Represents the minimum age criteria for plan eligibility under (employee benefit plan (EBP)). Employee Benefit Plan, Minimum Age For Plan Eligibility Minimum age for Plan eligibility EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Employee contribution EBP, Participant Contribution, Automatic, Deferral Rate Deferral rate Represents the minimum service hours to be completed by the participant during the year to be eligible for discretionary non-elective profit sharing contributions. Employee Benefit Plan, Minimum Service Hours For Plan Eligibility Minimum service hours for Plan eligibility Amount of non-elective contribution made by the participants during the year. Employee Benefit Plan, Non Elective Contribution, Amount Non-elelctive contribution EBP, Employer Contribution, Matching Percentage Employer contribution EBP, Employer Contribution, Participant Compensation Matched, Percentage Percentage of participant eligible compensation Percentage of additional discretionary contribution by participants into plan. Employee Benefit Plan, Employer Contribution, Participant Compensation ,Additional Discretionary Contribution, Percentage Additional discretionary contribution Percentage of matching additional discretionary contribution by employer. Employee Benefit Plan, Employer Contribution, Additional Discretionary Contribution, Matching Percentage Matching additional discretionary contribution Scenario [Axis] Scenario [Domain] Represent information pertaining to scenario years of service completed less than 1. Vesting Percentage For First And Second Year [Member] Vesting percentage for first and second year Represent information pertaining to scenario years of service completed 1 or more but less than 2. Vesting Percentage For Next Four Years [Member] Vesting percentage for next four years Represents the vested percentage of participant's interest in company's matching contribution. Employee Benefit Plan, Vested Percentage Vested percentage Represents the period of vesting. Employee Benefit Plan, Vesting Period Vesting period Represents the minimum retirement age of participants to the plan.. Employee Benefit Plan, Minimum Retirement Age Retirement age Represents the minimum service period for plan eligibility under (employee benefit plan (EBP)). Employee Benefit Plan, Minimum Service Period For Plan Eligibility Minimum service period for Plan eligibility EBP, Investment Program, Single Participation Status [Extensible Enumeration] Percentage of maximum deferral allocation and balance threshold. Employee Benefit Plan, Maximum Deferral Allocation And Balance Threshold, Percentage Maximum percentage of deferral allocation and balance threshold Represents the cooling period for participants before exchange. Employee Benefit Plan, Participant Cooling Period Before Exchange Waiting period before exchange EBP, Forfeited Nonvested Account Forfeited non-vested accounts EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Amount of forfeited nonvested accounts used to offset employer contributions Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Represents the threshold number of years of participation in the plan by participants to be eligible for borrowing. Employee Benefit Plan, Note Receivable from Participant, Account, Threshold Years Of Participation In Plan Number of years of participation in plan EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Note receivable, minimum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Note receivable, maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Note receivable, maximum borrowing percentage EBP, Asset Held for Investment, Participant Loan, Interest Rate Loan interest rate Represent the maximum number of loans the participants can borrow at a time. Employee Benefit Plan, Note Receivable from Participant, Account, Maximum Number Of Loans Number of loans Represents the interval period between paying off a previous loan and applying for a new loan. Employee Benefit Plan, Note Receivable from Participant, Account, Threshold Number Of Days To Obtain New Loan Waiting period Amount of maximum vested account balance of participant in the plan which may be distributed without participant consent in lump sum. Employee Benefit Plan, Maximum Vested Balance For Lump Sum Disbursement Vested aggregate account balance EBP, Note Receivable from Participant, Allowance for Credit Loss Allowance for credit losses Investment Type [Axis] Investments [Domain] EBP, Employer, Common Stock [Member] Common stock Common stock - South State Bank Corporation EBP, Related Party and Party-in-Interest [Axis] Related Party Transactions and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Domain] EBP, Related Party and Party-in-Interest [Domain] Represents information pertaining to employer. Employee Benefit Plan, Employer [Member] Employer EBP, Investment, Number of Shares Number of Shares EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Dividends received Percentage of participant account balances vested in the event of plan termination. Employee Benefit Plan, Vesting Percentage In Event Plan Termination Vesting percentage EBP, Tax Determination Letter, Obtained [true false] Determination letter obtained EBP, Tax Determination Letter, Date Determination letter date EBP, Tax Qualification Status [Extensible Enumeration] Tax qualification status Mutual Fund [Member] Mutual Funds Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Fair value hierarchy Fair Value, Inputs, Level 1 [Member] Quoted Prices In Active Markets for Identical Assets (Level 1) Fair Value Measured at Net Asset Value Per Share [Member] NAV Investment, Identifier [Axis] Entity Tax Identification Number Entity tax identification number EBP, Plan Number Plan number EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Current Value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Notes receivable from participants EBP, Asset Held for Investment, Participant Loan, Maturity Date Maturity date of notes receivable from participants EBP, Asset Held for Investment Total assets EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration]