Average period for which individual loans are expected to remain on the warehouse line .

No definition available.

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

- References

No definition available.

+ Details

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

- Definition

Represents the number of banking centers operated by the entity.

+ References

No definition available.

+ Details

Name:	rbcaa_NumberOfBanks
Namespace Prefix:	rbcaa_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow from issuance of preferred stocks by a business trust or other special purpose entity, mainly established by a bank holding entity, to third party investors. The trust's assets are deeply subordinated debentures of the bank holding entity. Most trust preferred securities are subject to a mandatory redemption upon the repayment of the debentures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfTrustPreferredSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - OPERATIONS (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 item segment	Dec. 31, 2005 USD ($)
Basis of Presentation
Number of reportable segments \| segment	5
Number of banking centers	42
Republic Bancorp Capital Trust \| Trust Preferred Securities
Basis of Presentation
Value of trust preferred securities issued \| $		$ 40.0
Kentucky
Basis of Presentation
Number of banking centers	28
Metropolitan Louisville
Basis of Presentation
Number of banking centers	18
Central Kentucky
Basis of Presentation
Number of banking centers	7
Georgetown
Basis of Presentation
Number of banking centers	1
Lexington
Basis of Presentation
Number of banking centers	5
Shelbyville
Basis of Presentation
Number of banking centers	1
Northern Kentucky
Basis of Presentation
Number of banking centers	3
Covington
Basis of Presentation
Number of banking centers	1
Crestview Hills
Basis of Presentation
Number of banking centers	1
Florence
Basis of Presentation
Number of banking centers	1
Southern Indiana
Basis of Presentation
Number of banking centers	3
Floyds Knobs
Basis of Presentation
Number of banking centers	1
Jeffersonville
Basis of Presentation
Number of banking centers	1
New Albany
Basis of Presentation
Number of banking centers	1
Metropolitan Tampa, Florida
Basis of Presentation
Number of banking centers	7
Metropolitan Cincinnati, Ohio
Basis of Presentation
Number of banking centers	2
Metropolitan Nashville, Tennessee
Basis of Presentation
Number of banking centers	2
Core Banking Activities
Basis of Presentation
Number of reportable segments \| segment	3
Core Banking Activities \| Minimum
Basis of Presentation
Period of loan expected to remain in warehouse line	15 days
Core Banking Activities \| Maximum
Basis of Presentation
Period of loan expected to remain in warehouse line	30 days
Republic Processing Group
Basis of Presentation
Number of reportable segments \| segment	2