| Document and Entity Information | May 10, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | May 10, 2021 |
| Entity Registrant Name | REPAY HOLDINGS CORPORATION |
| Entity Central Index Key | 0001720592 |
| Entity Tax Identification Number | 98-1496050 |
| Entity File Number | 001-38531 |
| Entity Emerging Growth Company | false |
| Entity Address, Address Line One | 3 West Paces Ferry Road |
| Entity Address, Address Line Two | Suite 200 |
| Entity Address, City or Town | Atlanta |
| Entity Address, State or Province | GA |
| Entity Address, Postal Zip Code | 30305 |
| City Area Code | 404 |
| Local Phone Number | 504-7472 |
| Entity Incorporation, State or Country Code | DE |
| Trading Symbol | RPAY |
| Security 12b Title | Class A common stock, par value $0.0001 per share |
| Security Exchange Name | NASDAQ |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
