Fair value portion of consumer loans held-for-sale.

No definition available.

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

- Definition

Represents information pertaining to gain or loss on sales of consumer loans lower of cost or fair value.

+ References

No definition available.

+ Details

Name:	rbcaa_GainLossOnSalesOfConsumerLoansLowerOfCostOrFairValue
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Amount, after allowance for bad debt, of line of credit and credit card loan receivables held-for-sale, at lower of cost or fair value, that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

+ References

No definition available.

+ Details

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

- Definition

The amount of cash paid for the origination of consumer loans that are held for sale (lower of cost or fair value).

+ References

No definition available.

+ Details

Name:	rbcaa_PaymentsForOriginationOfConsumerLoansHeldForSaleLowerOfCostOrFairValue
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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 cash inflow resulting from the sale of consumer loans that are held with the intention to resell in the near future (lower of cost or fair value).

+ References

No definition available.

+ Details

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

- Definition

The amount of consumer loans reclassified or transferred from held for sale to held for investments.

+ References

No definition available.

+ Details

Name:	rbcaa_ReclassificationOfConsumerLoansHeldForSaleToHeldForInvestments
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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

- Details

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

- Details

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

- Details

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

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
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LOANS HELD FOR SALE - CONSUMER LOANS (Details) - USD ($)	1 Months Ended	12 Months Ended			27 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Loans held for sale
Consumer loans held for sale, at fair value	$ 598,000	$ 598,000
Carried at lower of cost or fair value
Balance, beginning of period		12,838,000	$ 8,551,000	$ 1,310,000
Origination of consumer loans held for sale		709,768,000	761,491,000	603,704,000
Loans transferred to held for investment			1,392,000
Proceeds from the sale of consumer loans held for sale		(716,062,000)	(764,929,000)	(601,718,000)
Net gain on sale of consumer loans held for sale		5,102,000	6,333,000	5,255,000
Balance, end of period	11,646,000	$ 11,646,000	$ 12,838,000	$ 8,551,000
Republic Credit Solutions
Loans held for sale
Percentage of loan receivable held for sale (as a percent)		90.00%
Republic Credit Solutions \| Line of Credit and Healthcare Receivables
Loans held for sale
Percentage of loan receivable held for sale (as a percent)		90.00%
Republic Credit Solutions \| Installment loan
Loans held for sale
Consumer loans held for sale, at fair value	$ 598,000	$ 598,000
Term for intent to sell loans	16 days				21 days
Republic Credit Solutions \| Installment loan \| Minimum
Loans held for sale
Loan held-for-sale term	12 months	12 months
Republic Credit Solutions \| Installment loan \| Maximum
Loans held for sale
Loan held-for-sale term	60 months	60 months