| Cover | Jul. 21, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 21, 2021 |
| Entity File Number | 001-36101 |
| Entity Registrant Name | RE/MAX Holdings, Inc. |
| Entity Central Index Key | 0001581091 |
| Entity Tax Identification Number | 80-0937145 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 5075 South Syracuse Street |
| Entity Address, City or Town | Denver |
| Entity Address, State or Province | CO |
| Entity Address, Postal Zip Code | 80237 |
| City Area Code | 303 |
| Local Phone Number | 770-5531 |
| 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 Stock $0.0001 par value per share |
| Trading Symbol | RMAX |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
