XML 86 R67.htm IDEA: XBRL DOCUMENT v3.22.4

Summary of Significant Accounting Policies - Concentrations of Credit Risk (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) item	Dec. 31, 2021
Concentrations of Credit Risk
CDL Concentration Ratio (as percentage)	64.80%	55.20%
CRE Concentration Ratio (as percentage)	249.00%	238.50%
Concentrations of Credit Risk
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold (as a percent)	25.00%
Loans. | Concentrations of Credit Risk
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	$ 1,000,000
Number of credit concentrations for non-acquired credit impaired loans | item	8
Loans. | Concentrations of Credit Risk | Loans on hotels and motels
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	$ 1,000,000
Loans. | Concentrations of Credit Risk | Lessors of nonresidential buildings
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	5,700,000
Loans. | Concentrations of Credit Risk | Loans on owner occupied office buildings
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	1,900,000
Loans. | Concentrations of Credit Risk | Other holding companies
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	1,700,000
Loans. | Concentrations of Credit Risk | Lessors of residential and buildings
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	1,800,000
Loans. | Concentrations of Credit Risk | Loans secured by jumbo
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	5,400,000
Amount loaned	548,250
Loans. | Concentrations of Credit Risk | Residential 1-4 family
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	2,300,000
Loans. | Concentrations of Credit Risk | Business assets
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold	$ 2,100,000

X

- Definition

Ratio of CDL concentration.

+ References

No definition available.

+ Details

Name:	ssb_CDLConcentrationRatio
Namespace Prefix:	ssb_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Ratio of CRE concentration.

+ References

No definition available.

+ Details

Name:	ssb_CREConcentrationRatio
Namespace Prefix:	ssb_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the concentration amount, for the entity that discloses a concentration risk in relation to quantitative amount, which serves as a benchmark (or denominator) in the equation.

+ References

No definition available.

+ Details

Name:	ssb_ConcentrationRiskAmount
Namespace Prefix:	ssb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the number of credit concentrations meeting threshold for concentration of risk.

+ References

No definition available.

+ Details

Name:	ssb_ConcentrationRiskNumber
Namespace Prefix:	ssb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the threshold amount for determining concentration of risk.

+ References

No definition available.

+ Details

Name:	ssb_ConcentrationRiskThresholdAmount
Namespace Prefix:	ssb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the threshold percentage for determining concentration of risk.

+ References

No definition available.

+ Details

Name:	ssb_ConcentrationRiskThresholdPercentage
Namespace Prefix:	ssb_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_FinanceReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_HotelsAndMotelsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_LessorsOfNonresidentialBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_LoansOnOwnerOccupiedOfficeBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_OtherHoldingCompaniesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_LessorsOfResidentialBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_LoansSecuredByJumboMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_OneToFourFamilyOwnerOccupiedResidentialPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=ssb_BusinessAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: