| Document And Entity Information | Feb. 23, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 23, 2023 |
| Entity Registrant Name | Mister Car Wash, Inc. |
| Entity Central Index Key | 0001853513 |
| Entity Emerging Growth Company | false |
| Securities Act File Number | 001-40542 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 47-1393909 |
| Entity Address, Address Line One | 222 E. 5th Street |
| Entity Address, City or Town | Tucson |
| Entity Address, State or Province | AZ |
| Entity Address, Postal Zip Code | 85705 |
| City Area Code | (520) |
| Local Phone Number | 615-4000 |
| Entity Information, Former Legal or Registered Name | N/A |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | MCW |
| Security Exchange Name | NYSE |
