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Balance Type:	credit
Period Type:	duration

No definition available.

Name:	ssb_AcquisitionsAbstract
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Balance Type:	na
Period Type:	duration

No definition available.

Name:	ssb_CashPaidAbstract
Namespace Prefix:	ssb_
Data Type:	xbrli:stringItemType
Balance Type:	na
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets other than amortization of debt discount or (premium).

No definition available.

Name:	ssb_DepreciationDepletionAndAmortizationOtherThanAmortizationOfDebtDiscountPremium
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Represents the fair value adjustment for loans held for sale during the period.

No definition available.

Name:	ssb_FairValueAdjustmentForLoansHeldForSale
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The fair value of assets acquired in noncash investing or financing activities, net of fair value adjustments.

No definition available.

Name:	ssb_FairValueOfAssetsAcquiredNetOfAdjustments
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The fair value of liabilities assumed in noncash investing or financing activities, net of fair value adjustments.

No definition available.

Name:	ssb_LiabilitiesAssumedNetOfAdjustments
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N/A

No definition available.

Name:	ssb_NonCashOperatingAndFinancingActivitiesAbstract
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The number of common shares issued as noncash or part noncash consideration for a business or asset acquired.

No definition available.

Name:	ssb_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationCommonSharesIssued1
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The fair value of the pooling of small business administration loans held for sale.

No definition available.

Name:	ssb_NoncashOrPartNoncashOperatingActivityAmountOfSmallBusinessAdministrationLoansHeldForSalePooling
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Represents a noncash operating activity resulting from securitization of Small Business Administration (SBA) loans held for sale, in which the entity retains an interest-only strip representing the right to future interest cash flows.

No definition available.

Name:	ssb_NoncashOrPartNoncashOperatingActivityCreationOfInterestOnlyStripFromSecuritizationOfSmallBusinessAdministrationLoansHeldForSale
Namespace Prefix:	ssb_
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Represents the amount of other real estate write downs adjusted back to net income.

No definition available.

Name:	ssb_OtherRealEstateWriteDowns
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Amount of cash outflow for excise tax on repurchase of common stock during the period.

No definition available.

Name:	ssb_PaymentsForExciseTaxOnRepurchaseOfCommonStock
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Represents the amount of real estate acquired in full or in partial settlement of loans.

No definition available.

Name:	ssb_RealEstateAcquiredInFullOrInPartialSettlementOfLoans
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The amount of real estate property transferred from premises and equipment to held for sale in a sale and leaseback transaction.

No definition available.

Name:	ssb_SaleAndLeasebackTransactionTransferOfRealEstateToHeldForSale
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The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

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No definition available.

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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The cash inflow associated with the acquisition of a business when the cash held by the acquired business exceeds the cash payments to acquire the business.

No definition available.

Name:	us-gaap_CashAcquiredInExcessOfPaymentsToAcquireBusiness
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Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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Amount of increase (decrease) in cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; including effect from exchange rate change and including, but not limited to, discontinued operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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Amount of deferred income tax expense (benefit) and income tax credits.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

Name:	us-gaap_GainLossOnSaleOfLoansAndLeases
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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

Name:	us-gaap_GainLossOnSaleOfPropertyPlantEquipment
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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.

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Balance Type:	debit
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The increase (decrease) during the reporting period in the amount due from borrowers for interest payments.

Name:	us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Amount of increase (decrease) of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Name:	us-gaap_IncreaseDecreaseInDebtSecuritiesTrading
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.

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Name:	us-gaap_IncreaseDecreaseInDeposits
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Data Type:	xbrli:monetaryItemType
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The increase (decrease) during the period in the carrying value of derivative instruments reported as assets that are due to be disposed of within one year (or the normal operating cycle, if longer).

Name:	us-gaap_IncreaseDecreaseInDerivativeAssets
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The increase (decrease) during the period in the carrying value of derivative instruments reported as liabilities that are due to be disposed of within one year (or the normal operating cycle, if longer).

Name:	us-gaap_IncreaseDecreaseInDerivativeLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The net cash inflow or outflow from the fund lent to other financial institution arising from the excess in reserve deposited at Federal Reserve Bank to meet legal requirement. This borrowing is usually contracted on an overnight basis at an agreed rate of interest. Also include cash inflow or outflow from investment sold under the agreement to reacquire such investment.

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Name:	us-gaap_IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet
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The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.

Name:	us-gaap_IncreaseDecreaseInInterestPayableNet
Namespace Prefix:	us-gaap_
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Amount of increase (decrease) in value of loan held with intention to sell or be securitized in near future.

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Name:	us-gaap_IncreaseDecreaseInLoansHeldForSale
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Balance Type:	credit
Period Type:	duration

No definition available.

Name:	us-gaap_IncreaseDecreaseInOperatingCapitalAbstract
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Data Type:	xbrli:stringItemType
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Amount of increase (decrease) in obligation for operating lease.

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Name:	us-gaap_IncreaseDecreaseInOperatingLeaseLiability
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Amount of increase (decrease) in operating assets classified as other.

Name:	us-gaap_IncreaseDecreaseInOtherOperatingAssets
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Amount of increase (decrease) in operating liabilities classified as other.

Name:	us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
Namespace Prefix:	us-gaap_
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The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.

Name:	us-gaap_IncreaseDecreaseInPrepaidExpense
Namespace Prefix:	us-gaap_
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Period Type:	duration

Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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Name:	us-gaap_InterestPaidNet
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The change in cash surrender or contract value during the period which adjusted the amount of premiums paid in determining the expense or income recognized under the contract for the period.

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Name:	us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue
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Amount of cash inflow (outflow) from financing activity, including, but not limited to, discontinued operation. Financing activity includes, but is not limited to, obtaining resource from owner and providing return on, and return of, their investment; borrowing money and repaying amount borrowed, or settling obligation; and obtaining and paying for other resource obtained from creditor on long-term credit.

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No definition available.

Name:	us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract
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Amount of cash inflow (outflow) from investing activity, including, but not limited to, discontinued operation. Investing activity includes, but is not limited to, making and collecting loan, acquiring and disposing of debt and equity instruments, property, plant, and equipment, and other productive assets.

Name:	us-gaap_NetCashProvidedByUsedInInvestingActivities
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No definition available.

Name:	us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract
Namespace Prefix:	us-gaap_
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Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity.

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Name:	us-gaap_NetCashProvidedByUsedInOperatingActivities
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No definition available.

Name:	us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract
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The amount of intangibles that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The net book value of a nonmonetary asset transferred or exchanged in connection with the acquisition of a business or asset in a noncash transaction. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Nonmonetary assets and liabilities are assets and liabilities that will not result in cash receipts or cash payments in the future.

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The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future.

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The cash outflow to reacquire common stock during the period.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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Amount of cash outflow to acquire investments classified as other.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow from the additional capital contribution to the entity.

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Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.

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Amount of cash inflow from debt classified as other.

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Amount of cash inflow from recovery of financing receivable, previously written off.

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The cash inflow associated with the sale of insurance policy investment assets during the period.

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The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

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Amount of cash inflow from the sale of investments classified as other.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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