XML 129 R115.htm IDEA: XBRL DOCUMENT v3.24.0.1

Derivatives and Hedging Activities - Cash Flow Hedges (Details)	1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Feb. 28, 2023 USD ($)	Jul. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Oct. 31, 2018 USD ($)
DERIVATIVES AND HEDGING ACTIVITIES
USD-Prime rate				8.50%
USD-SOFR OIS rate				5.34446%
Non-interest income related to changes in the fair value		$ 0	$ 0	$ 0	$ 0
Interest rate swaps | Cash flow hedges
DERIVATIVES AND HEDGING ACTIVITIES
Total notional amount of the swaps									$ 300,000,000	$ 400,000,000
Derivative, fixed interest rate									1.6725%	3.018%
Terminated notional amount of derivatives	$ 400,000,000
Expected interest income on termination	$ 45,900,000
Floating rate of interest		5.456%		5.456%
Interest rate swap interest income				$ 8,100,000	8,100,000	$ 8,100,000
Terminated interest rate swap				10,400,000	$ 941,000
Interest rate swaps | Fair Value Hedges
DERIVATIVES AND HEDGING ACTIVITIES
Total notional amount of the swaps							$ 95,000,000
Derivative, fixed interest rate							4.65%
Interest rate swap one | Cash flow hedges
DERIVATIVES AND HEDGING ACTIVITIES
Total notional amount of the swaps								$ 200,000,000
Derivative, fixed interest rate								2.628%
Interest rate swap two | Cash flow hedges
DERIVATIVES AND HEDGING ACTIVITIES
Total notional amount of the swaps								$ 200,000,000
Derivative, fixed interest rate								5.725%
July 2022 interest rate swaps | Cash flow hedges
DERIVATIVES AND HEDGING ACTIVITIES
Loan interest income expense				$ 7,200,000
Number of loans | item				2

X

- Definition

Represents the amount of interest income (expense) on interest rate swap.

+ References

No definition available.

+ Details

Name:	gsbc_DerivativeInterestRateSwapInterestIncomeExpense
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the number of interest rate swap contracts.

+ References

No definition available.

+ Details

Name:	gsbc_DerivativeInterestRateSwapNumber
Namespace Prefix:	gsbc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of terminated value of derivatives.

+ References

No definition available.

+ Details

Name:	gsbc_DerivativeTerminationNotionalAmount
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of interest income expected upon termination of a derivative contract.

+ References

No definition available.

+ Details

Name:	gsbc_DerivativeTerminationValueExpectedInterestIncome
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of derivative termination value loan interest income.

+ References

No definition available.

+ Details

Name:	gsbc_DerivativeTerminationValueLoanInterestIncome
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the monetary amount of interest rate swap interest income, during the indicated time period.

+ References

No definition available.

+ Details

Name:	gsbc_InterestRateSwapInterestIncome
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

It represents the amount of non interest income changes in fair value.

+ References

No definition available.

+ Details

Name:	gsbc_NonInterestIncomeChangesInFairValue
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The percentage of USD-prime rate.

+ References

No definition available.

+ Details

Name:	gsbc_UsdPrimeRate
Namespace Prefix:	gsbc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of USD-SOFR OIS rate.

+ References

No definition available.

+ Details

Name:	gsbc_UsdSofrOisRate
Namespace Prefix:	gsbc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeVariableInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=gsbc_InterestRateSwapOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=gsbc_InterestRateSwapTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=gsbc_July2022InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: