XML 162 R148.htm IDEA: XBRL DOCUMENT
v3.20.4

Condensed Parent Company Statements - Condensed Statement of Comprehensive Income - (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Condensed Statement of Income Captions [Line Items] |  |  |
Change in fair value of cash flow hedge, net of taxes of $0, $0 and $93 for 2019, 2018 and 2017, respectively | $ 11,914 | $ 13,857 | $ 9,345
Parent Company [Member] |  |  |
Condensed Statement of Income Captions [Line Items] |  |  |
Net Income | 59,313 | 73,612 | 67,109
Comprehensive income (loss) of subsidiaries | 20,905 | 22,619 | 8,114
Comprehensive Income parent | $ 80,218 | $ 96,231 | $ 75,223

X
- Definition Represents the monetary amount of Change in fair value of cash flow hedge, net, during the indicated time period. + References No definition available. + Details
Name: | gsbc_ChangeInFairValueOfCashFlowHedgeNet
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the monetary amount of Comprehensive Income of subsidiaries, during the indicated time period. + References No definition available. + Details
Name: | gsbc_ComprehensiveIncomeOfSubsidiaries
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the monetary amount of Comprehensive Income parent, during the indicated time period. + References No definition available. + Details
Name: | gsbc_ComprehensiveIncomeParent
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the monetary amount of Net Comprehensive Income Parent Company, during the indicated time period. + References No definition available. + Details
Name: | gsbc_NetComprehensiveIncomeParentCompany
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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: | srt_CondensedStatementOfIncomeCaptionsLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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