| Document and Entity Information | Nov. 15, 2023 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 15, 2023 |
| Entity Registrant Name | REPUBLIC BANCORP, INC. |
| Entity Incorporation, State or Country Code | KY |
| Entity File Number | 0-24649 |
| Entity Tax Identification Number | 61-0862051 |
| Entity Address, Address Line One | 601 West Market Street |
| Entity Address, City or Town | Louisville |
| Entity Address, State or Province | KY |
| Entity Address, Postal Zip Code | 40202 |
| City Area Code | 502 |
| Local Phone Number | 584-3600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A Common |
| Trading Symbol | RBCAA |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000921557 |
| Amendment Flag | false |
