XML 100 R86.htm IDEA: XBRL DOCUMENT
v3.20.4

FDIC-Acquired Loans and Loss Sharing Agreements - Consolidated Statements of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
FDIC-Acquired Loans and Loss Sharing Agreements |  |  |
Interest income and net impact to pre-tax income | $ 5,574 | $ 7,431 | $ 5,134
Remaining accretable yield adjustment | 2,000 |  |
Expected interest income | $ 1,500 |  |

X
- Definition Represents the amount of interest income on remaining accretable yield adjustment. + References No definition available. + Details
Name: | gsbc_InterestIncomeRemainingAccretableYieldAdjustment
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the monetary amount of Net impact of acquired loan pools to pre-tax income, during the indicated time period. + References No definition available. + Details
Name: | gsbc_NetImpactOfAcquiredLoanPoolsToPreTaxincome
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount of remaining accretable yield adjustment on interest income. + References No definition available. + Details
Name: | gsbc_RemainingAccretableYieldAdjustment
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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