XML 161 R145.htm IDEA: XBRL DOCUMENT
v3.20.4

Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Jan. 01, 2020 | Dec. 31, 2019
Financial instruments, whose contract amounts represent credit risk |  |  |
Liability recorded for expected credit losses on unfunded commitments |  | $ 6,400 |
Other Liabilities |  |  |
Financial instruments, whose contract amounts represent credit risk |  |  |
Liability recorded for expected credit losses on unfunded commitments | $ 43,400 |  |
Standby letters of credit |  |  |
Financial instruments, whose contract amounts represent credit risk |  |  |
Expiration period of standby letters of credit | 1 year |  |
South State Bank (the Bank) |  |  |
Financial instruments, whose contract amounts represent credit risk |  |  |
Off balance sheet financial instruments | $ 6,006,352 |  | $ 2,934,869
South State Bank (the Bank) | Commitments to extend credit |  |  |
Financial instruments, whose contract amounts represent credit risk |  |  |
Off balance sheet financial instruments | 5,929,845 |  | 2,902,000
South State Bank (the Bank) | Standby letters of credit and financial guarantees |  |  |
Financial instruments, whose contract amounts represent credit risk |  |  |
Off balance sheet financial instruments | $ 76,507 |  | $ 32,869

X
- Definition The amount of liability recorded for expected credit losses on unfunded commitments. + References No definition available. + Details
Name: | ssb_LiabilityRecordedForExpectedCreditLossesOnUnfundedCommitments
Namespace Prefix: | ssb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the term of borrowing under standby letters of credit. + References No definition available. + Details
Name: | ssb_MaximumTermOfStandbyLettersOfCredit
Namespace Prefix: | ssb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_FairValueOffBalanceSheetRisksDisclosureInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommitmentsToExtendCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=ssb_StandbyLettersOfCreditAndFinancialGuaranteesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |