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MORTGAGE BANKING ACTIVITIES - LOANS SERVICED BY BANK (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Mortgage Loans Held-for-sale [Line Items]
Bank serviced loans	$ 1,323,622,000	$ 1,316,919,000
Carrying value of LRA	572,000	0
FHLMC
Mortgage Loans Held-for-sale [Line Items]
Bank serviced loans	830,835,000	899,444,000
Custodial escrow account balances maintained in connection with serviced loans	8,000,000	8,000,000
FNMA
Mortgage Loans Held-for-sale [Line Items]
Bank serviced loans	448,488,000	417,475,000
FHLB
Mortgage Loans Held-for-sale [Line Items]
Bank serviced loans	44,299,000
Amount of funds withheld to settle recourse obligations	$ 1,336,000	$ 0

X

- Definition

Represents the value of of Bank serviced loans for others, not reported as assets.

+ References

No definition available.

+ Details

Name:	rbcaa_BankServiceLoansForOthersNotReportedAsAssets
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of funds withheld to settle recourse obligations for absorbing potential losses on loans sold to the FHBL.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of receivables in lender risk account for repayment of funds to the company.

+ References

No definition available.

+ Details

Name:	rbcaa_LenderRiskAccountCarryingAmount
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 440
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478522/954-440-50-1

+ Details

Name:	us-gaap_EscrowDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	dei_LegalEntityAxis=rbcaa_FederalHomeLoanMortgageCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=rbcaa_FederalNationalMortgageAssociationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=rbcaa_FederalHomeLoanBankSystemMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: