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MORTGAGE BANKING ACTIVITIES - LOANS SERVICED BY BANK (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
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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

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- 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

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- 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

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- 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

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- References No definition available. + Details
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Namespace Prefix: | rbcaa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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