Represents the allowance for Easy Advances (EAs).

No definition available.

Name:	rbcaa_AllowanceForEasyAdvances
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetained
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to consumer loans held for sale period within origination.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

Name:	rbcaa_PercentageOfLoanReceivableHeldForSale
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Represents the selling cost for Other Real Estate Owned (OREO) expressed as a percentage of each property's fair value.

+ References

No definition available.

+ Details

Name:	rbcaa_SellingCostForOREOExpressedAsPercentageOfEachPropertysFairValue
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_OtherRealEstateAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - CREDIT SOLUTIONS AND OREO (Details) - USD ($) $ in Thousands	2 Months Ended			12 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017	Dec. 31, 2019	Dec. 31, 2018
Republic Credit Solutions
Republic Credit Solutions
Percentage of loan receivable held for sale (as a percent)				90.00%
Interest retained (as a percent)				10.00%
Consumer loans held for sale period				3 days
Minimum
Other Real Estate Owned
Selling cost for OREO expressed as a percentage of each property's fair value				10.00%
Maximum
Other Real Estate Owned
Selling cost for OREO expressed as a percentage of each property's fair value				13.00%
Easy Advances \| Tax Refund Solutions
Republic Credit Solutions
Period Easy Advance tax credit product offered	2 months	2 months	2 months
EA's repayment term				21 days
Allowance for EAs				$ 0	$ 0