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INVESTMENT SECURITIES - ACLS (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
INVESTMENT SECURITIES |  |
Debt Securities, Held-to-Maturity, Nonaccrual | $ 0 | $ 0
Debt Securities, Held To Maturity, Collateral Dependent | $ 0 | $ 0

X
- Definition Amount of investment in debt security measured at amortized cost (held-to-maturity) considered collateral dependent. + References No definition available. + Details
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Namespace Prefix: | rbcaa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at amortized cost (held-to-maturity) on nonaccrual status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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