Name:	rbcaa_BasisOfPresentationLineItems
Namespace Prefix:	rbcaa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents information pertaining to the ownership interest retained from consumer loans held for sale.

No definition available.

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetained
Namespace Prefix:	rbcaa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents information pertaining to the ownership interest retained from consumer loans held for sale related to third party relationship one.

No definition available.

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetainedForThirdPartyRelationshipOne
Namespace Prefix:	rbcaa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents information pertaining to the ownership interest retained from consumer loans held for sale related to third party relationship two.

No definition available.

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetainedForThirdPartyRelationshipTwo
Namespace Prefix:	rbcaa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Amount of advances given to a customer under easy advance product of TRS division.

No definition available.

Name:	rbcaa_EasyAdvancePerCustomer
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the period within which EAs were generally repaid after the taxpayer customer's tax return was submitted to the applicable tax authority.

No definition available.

Name:	rbcaa_MaximumPeriodOfEasyAdvancesRepaid
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Maximum repayment period before Easy Advances considered delinquent.

No definition available.

Name:	rbcaa_MaximumRepaymentPeriodBeforeEasyAdvancesConsideredDelinquent
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of service products.

No definition available.

Name:	rbcaa_NumberOfServiceProducts
Namespace Prefix:	rbcaa_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of third party relationships.

No definition available.

Name:	rbcaa_NumberOfThirdPartyRelationship
Namespace Prefix:	rbcaa_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents information pertaining to percentage of consumer loans receivables held for sale.

No definition available.

Name:	rbcaa_PercentageOfLoanReceivableHeldForSale
Namespace Prefix:	rbcaa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents information pertaining to percentage of consumer loans receivables held for sale relating to third party relationship two.

No definition available.

Name:	rbcaa_PercentageOfLoanReceivableHeldForSaleForThirdPartyRelationshipTwo
Namespace Prefix:	rbcaa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of ownership maintained with each borrower.

No definition available.

Name:	rbcaa_PercentageOfOwnershipMaintainedWithEachBorrower
Namespace Prefix:	rbcaa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The period Refund Advance ("EA") tax credit product is offered.

No definition available.

Name:	rbcaa_PeriodRefundAdvanceTaxCreditOffered
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Term of sale of loan originated under the restarted program carried as held for sale.

No definition available.

Name:	rbcaa_TermOfSaleOfLoanOriginatedUnderRestartedProgram
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Period between issuance and maturity of loan held for sale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_StatementBusinessSegmentsAxis=rbcaa_RepublicCreditSolutionsDivisionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_ShortTermLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_LineOfCreditProductOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_LineOfCreditProductTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_ShortTermInstallmentLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_ShortTermHealthcareReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementBusinessSegmentsAxis=rbcaa_TaxRefundSolutionsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_RefundAdvancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: