XML 78 R68.htm IDEA: XBRL DOCUMENT
v3.26.1

SHORT-TERM BORROWINGS - Schedule of Short-term Debt (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
SHORT-TERM BORROWINGS |  |
Notes payable - Community Development Equity Funds | $ 660 | $ 928
Securities sold under reverse repurchase agreements | 37,198 | 48,467
Overnight borrowings from the Federal Home Loan Bank | 470,000 | 330,000
Short-term debt recorded value | $ 507,858 | $ 379,395

X
- Definition Amount of Overnight advances from the Federal Home Loan Bank (FHLB). + References No definition available. + Details
Name: | gsbc_FederalHomeLoanBankAdvancesBranchOfFhlbBankAmountOfOvernightAdvances
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the monetary amount of Notes payable - Community Development Equity Funds, as of the indicated date. + References No definition available. + Details
Name: | gsbc_NotesPayableCommunityDevelopmentEquityFunds
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the value of securities sold in the reverse repurchase agreement. + References No definition available. + Details
Name: | gsbc_SaleOfSecuritiesUnderReverseRepurchaseAgreements
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the monetary amount of Short-term debt recorded value, as of the indicated date. + References No definition available. + Details
Name: | gsbc_ShortTermDebtRecordedValue
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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