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Loans and Allowance for Credit Losses - Weighted Average Interest Rate on Loans Receivable (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Loans and Allowance for Credit Losses |  |
Commercial loan participations sold to other financial institutions | $ 334.6 | $ 422.3
Residential mortgage loans sold | 105.3 | 117.9
Unpaid principal balances |  |
Loans and Allowance for Credit Losses |  |
Loans serviced for others | 439.9 | 540.2
Unused lines of Credit |  |
Loans and Allowance for Credit Losses |  |
Loans serviced for others | $ 123.6 | $ 104.1

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- Definition Represents the monetary amount of Loans serviced for others, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | gsbc_
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- Definition Represents the monetary amount of Residential mortgage loans sold, during the indicated time period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC + Details
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- Details
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- Details
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Balance Type: |
Period Type: |