| Document and Entity Information | May 10, 2024 |
| Cover [Abstract] | |
| Amendment Flag | true |
| Entity Central Index Key | 0001802156 |
| Document Type | 8-K/A |
| Document Period End Date | May 10, 2024 |
| Entity Registrant Name | XPONENTIAL FITNESS, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40638 |
| Entity Tax Identification Number | 84-4395129 |
| Entity Address, Address Line One | 17877 Von Karman Avenue |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Irvine |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92614 |
| City Area Code | (949) |
| Local Phone Number | 346-3000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | XPOF |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Description | This Current Report on Form 8-K/A (this “Current Report”) amends the Current Report on Form 8-K filed by Xponential Fitness, Inc. (the “Company”) with the Securities and Exchange Commission (the “SEC”) on May 10, 2024 (the “Original Report”) and is being filed in order to supplement the Company’s disclosure under Items 5.02 and 8.01 of the Original Report. The Original Report otherwise remains unchanged. |
