LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES - PORTFOLIO CLASS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	$ 4,616	$ 4,708
Collectively evaluated for impairment	27,995	22,064
PCI loans with post acquisition impairment	309	719
Total ending allowance for loan losses	32,920	27,491	$ 24,410	$ 23,026
Impaired loans individually evaluated, excluding PCI loans	48,856	59,274
Loans collectively evaluated for impairment	3,751,648	3,254,793
PCI loans with post acquisition impairment	3,828	6,849
PCI loans without post acquisition impairment	6,446	5,694
Carrying value of loans	3,810,778	3,326,610
Residential Real Estate - Owner Occupied
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	3,203	3,820
Collectively evaluated for impairment	3,797	4,471
PCI loans with post acquisition impairment	158	10
Total ending allowance for loan losses	7,158	8,301	8,565	7,816
Impaired loans individually evaluated, excluding PCI loans	31,908	39,041
Loans collectively evaluated for impairment	965,755	1,042,334
PCI loans with post acquisition impairment	2,297	65
PCI loans without post acquisition impairment	188	494
Carrying value of loans	1,000,148	1,081,934
Owner Occupied - Correspondent
Allowance for loans losses
Collectively evaluated for impairment	373	623
Total ending allowance for loan losses	373	623	567
Loans collectively evaluated for impairment	149,028	249,344
Carrying value of loans	149,028	249,344
Residential Real Estate - Non Owner Occupied
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	65	78
Collectively evaluated for impairment	1,067	878
PCI loans with post acquisition impairment	7	96
Total ending allowance for loan losses	1,139	1,052	837	1,023
Impaired loans individually evaluated, excluding PCI loans	1,601	2,351
Loans collectively evaluated for impairment	154,481	113,158
PCI loans with post acquisition impairment	268	785
PCI loans without post acquisition impairment	255
Carrying value of loans	156,605	116,294
Commercial Real Estate
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	532	339
Collectively evaluated for impairment	7,465	6,806
PCI loans with post acquisition impairment	45	491
Total ending allowance for loan losses	8,042	7,636	7,740	8,309
Impaired loans individually evaluated, excluding PCI loans	11,769	12,441
Loans collectively evaluated for impairment	1,005,163	802,528
PCI loans with post acquisition impairment	1,164	4,806
PCI loans without post acquisition impairment	5,885	5,112
Carrying value of loans	1,023,981	824,887
Commercial real estate - purchased whole loans
Allowance for loans losses
Collectively evaluated for impairment	36	36
Total ending allowance for loan losses	36	36	34	34
Loans collectively evaluated for impairment	36,515	35,674
Carrying value of loans	36,515	35,674
Construction & land development
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	120	159
Collectively evaluated for impairment	1,730	1,144
Total ending allowance for loan losses	1,850	1,303	926	1,296
Impaired loans individually evaluated, excluding PCI loans	882	2,717
Loans collectively evaluated for impairment	118,768	63,750
PCI loans without post acquisition impairment		33
Carrying value of loans	119,650	66,500
Commercial & Industrial
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	227	196
Collectively evaluated for impairment	1,284	1,137
PCI loans with post acquisition impairment		122
Total ending allowance for loan losses	1,511	1,455	1,167	1,089
Impaired loans individually evaluated, excluding PCI loans	686	322
Loans collectively evaluated for impairment	265,012	228,151
PCI loans with post acquisition impairment		1,193
PCI loans without post acquisition impairment	23	55
Carrying value of loans	265,721	229,721
Lease Financing Receivables
Allowance for loans losses
Collectively evaluated for impairment	136	89
Total ending allowance for loan losses	136	89	25
Loans collectively evaluated for impairment	13,614	8,905
Carrying value of loans	13,614	8,905
Warehouse lines of credit
Allowance for loans losses
Collectively evaluated for impairment	1,464	967
Total ending allowance for loan losses	1,464	967	799	449
Loans collectively evaluated for impairment	585,439	386,729
Carrying value of loans	585,439	386,729
Home equity lines of credit
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	433	100
Collectively evaluated for impairment	3,225	2,896
PCI loans with post acquisition impairment	99
Total ending allowance for loan losses	3,757	2,996	2,730	2,396
Impaired loans individually evaluated, excluding PCI loans	1,929	2,316
Loans collectively evaluated for impairment	339,163	286,878
PCI loans with post acquisition impairment	99
PCI loans without post acquisition impairment	94
Carrying value of loans	341,285	289,194
Consumer: Republic Processing Group Loans
Allowance for loans losses
Collectively evaluated for impairment	4,992	1,699
Total ending allowance for loan losses	4,992	1,699	44
Loans collectively evaluated for impairment	32,252	7,204
Carrying value of loans	32,252	7,204
Consumer: Credit cards
Allowance for loans losses
Collectively evaluated for impairment	490	448
Total ending allowance for loan losses	490	448	285	289
Loans collectively evaluated for impairment	13,414	11,068
Carrying value of loans	13,414	11,068
Consumer: Overdrafts
Allowance for loans losses
Collectively evaluated for impairment	675	351
Total ending allowance for loan losses	675	351	382	199
Loans collectively evaluated for impairment	803	685
Carrying value of loans	803	685
Consumer: Automobile loan
Allowance for loans losses
Collectively evaluated for impairment	526	56
Total ending allowance for loan losses	526	56	32	54
Loans collectively evaluated for impairment	52,579	6,473
Carrying value of loans	52,579	6,473
Other consumer
Allowance for loans losses
Individually evaluated for impairment, excluding PCI loans	36	16
Collectively evaluated for impairment	735	463
Total ending allowance for loan losses	771	479	$ 277	$ 72
Impaired loans individually evaluated, excluding PCI loans	81	86
Loans collectively evaluated for impairment	19,662	11,912
PCI loans without post acquisition impairment	1
Carrying value of loans	$ 19,744	$ 11,998

Represents the valuation allowance related to purchased credit impaired loans with post acquisition impairment.

No definition available.

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

- Definition

Represents the balance of purchased credit impaired loans with post acquisition impairment.

+ References

No definition available.

+ Details

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

- Definition

Represents the balance of purchased credit impaired loans without post acquisition impairment.

+ References

No definition available.

+ Details

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

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

+ Details

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

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

+ Details

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

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.1)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

+ Details

Name:	us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

+ Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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