XML 149 R131.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Fair Value - Loans (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021
Fair Value. |
Percentage of individually evaluated loans | 55.00%

X
- Definition Represents the percentage of loans evaluated based on fair value of collateral security. + References No definition available. + Details
Name: | ssb_PercentageOfEvaluatedLoansBasedOnFairValueOfCollateralSecurity
Namespace Prefix: | ssb_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration