Subsequent Events	12 Months Ended
Dec. 31, 2025
Subsequent Events [Abstract]
Subsequent Events	20. Subsequent Events Merger Agreement On February 17, 2026, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) with MCW Parent, LP, a Delaware limited partnership (“Parent”), Boson Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Parent (“Merger Sub”, and together with Parent, the “Buyer Parties”), and, solely for purposes of the Borrower Provisions (as defined in the Merger Agreement), one of our wholly owned subsidiaries, Mister Car Wash Holdings, Inc. a Delaware corporation (“Borrower”), pursuant to which, on the terms and subject to the satisfaction or waiver of the conditions set forth therein, Merger Sub will be merged with and into the Company, with the Company continuing as the surviving corporation (the “Merger”). The Merger has been approved by the board of directors of the Company, acting upon the recommendation of a special committee of the board of directors consisting only of directors that the board of directors determined to each be a “disinterested director” (as defined in Section 144 of the General Corporation Law of the State of Delaware (the “DGCL”)) with respect to the transactions contemplated by the Merger Agreement. If the Merger is completed, our common stock will no longer be listed on The Nasdaq Stock Market LLC and we will become a privately held company, owned by investment funds managed by Leonard Green & Partners, L.P. (“LGP”), and deregistered under the Securities and Exchange Act of 1934, as amended. Pursuant to the terms of the Merger Agreement, neither Mister Car Wash, on the one hand, nor the Buyer Parties, on the other hand, are required to consummate the Merger prior to April 20, 2026. The Merger is expected to close in the first half of 2026. Pursuant to the terms of the Merger Agreement, at the effective time of the Merger (the “Effective Time”), (i) each share of our common stock that is outstanding as of immediately prior to the Effective Time (other than shares of our common stock described in clauses (ii) or (iii) of this sentence) will be cancelled and extinguished and automatically converted into the right to receive cash in an amount per share equal to $7.00, without interest thereon (the “Per Share Price”), (ii) each share of our common stock that is (a) held by us as treasury stock or (b) owned by the Buyer Parties or any of their direct or indirect subsidiaries as of immediately prior to the Effective Time, including the shares of our common stock held by investment funds affiliated with LGP and the shares contributed to Parent by Company executives who execute a Management Rollover Agreement (as defined in the Merger Agreement), if any, will automatically be cancelled and extinguished without any conversion thereof or consideration paid therefor, and (iii) each share of our common stock that is issued and outstanding as of immediately prior to the Effective Time and held by any person or entity (including a “beneficial owner”) who has validly demanded and not validly withdrawn or otherwise lost its statutory appraisal rights in respect of such share in accordance with Section 262 of the DGCL (such shares, “Dissenting Company Shares”) will not be converted into, or represent the right to receive, the Per Share Price, and will instead be entitled to receive payment of the appraised value of such Dissenting Company Shares in accordance with the provisions of Section 262 of the DGCL. Commitment Letter Parent has obtained debt financing commitments for the purpose of financing the transactions contemplated by the Merger Agreement and paying related fees and expenses. Certain financial institutions have severally committed to provide Borrower with a $900 million senior secured first lien incremental term loan facility under the Credit Agreement, on the terms set forth in the related debt commitment letter. The obligations of such financial institutions to provide debt financing under the debt commitment letter are subject to a number of customary conditions. Pursuant to the Merger Agreement, the Company is required to provide Parent with customary cooperation in connection with the debt financing.

Subsequent Events

12 Months Ended

Dec. 31, 2025

20. Subsequent Events

Merger Agreement

On February 17, 2026, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) with MCW Parent, LP, a Delaware limited partnership (“Parent”), Boson Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Parent (“Merger Sub”, and together with Parent, the “Buyer Parties”), and, solely for purposes of the Borrower Provisions (as defined in the Merger Agreement), one of our wholly owned subsidiaries, Mister Car Wash Holdings, Inc. a Delaware corporation (“Borrower”), pursuant to which, on the terms and subject to the satisfaction or waiver of the conditions set forth therein, Merger Sub will be merged with and into the Company, with the Company continuing as the surviving corporation (the “Merger”). The Merger has been approved by the board of directors of the Company, acting upon the recommendation of a special committee of the board of directors consisting only of directors that the board of directors determined to each be a “disinterested director” (as defined in Section 144 of the General Corporation Law of the State of Delaware (the “DGCL”)) with respect to the transactions contemplated by the Merger Agreement.

If the Merger is completed, our common stock will no longer be listed on The Nasdaq Stock Market LLC and we will become a privately held company, owned by investment funds managed by Leonard Green & Partners, L.P. (“LGP”), and deregistered under the Securities and Exchange Act of 1934, as amended.

Pursuant to the terms of the Merger Agreement, neither Mister Car Wash, on the one hand, nor the Buyer Parties, on the other hand, are required to consummate the Merger prior to April 20, 2026. The Merger is expected to close in the first half of 2026.

Pursuant to the terms of the Merger Agreement, at the effective time of the Merger (the “Effective Time”), (i) each share of our common stock that is outstanding as of immediately prior to the Effective Time (other than shares of our common stock described in clauses (ii) or (iii) of this sentence) will be cancelled and extinguished and automatically converted into the right to receive cash in an amount per share equal to $7.00, without interest thereon (the “Per Share Price”), (ii) each share of our common stock that is (a) held by us as treasury stock or (b) owned by the Buyer Parties or any of their direct or indirect subsidiaries as of immediately prior to the Effective Time, including the shares of our common stock held by investment funds affiliated with LGP and the shares contributed to Parent by Company executives who execute a Management Rollover Agreement (as defined in the Merger Agreement), if any, will automatically be cancelled and extinguished without any conversion thereof or consideration paid therefor, and (iii) each share of our common stock that is issued and outstanding as of immediately prior to the Effective Time and held by any person or entity (including a “beneficial owner”) who has validly demanded and not validly withdrawn or otherwise lost its statutory appraisal rights in respect of such share in accordance with Section 262 of the DGCL (such shares, “Dissenting Company Shares”) will not be converted into, or represent the right to receive, the Per Share Price, and will instead be entitled to receive payment of the appraised value of such Dissenting Company Shares in accordance with the provisions of Section 262 of the DGCL.

Commitment Letter

Parent has obtained debt financing commitments for the purpose of financing the transactions contemplated by the Merger Agreement and paying related fees and expenses. Certain financial institutions have severally committed to provide Borrower with a $900 million senior secured first lien incremental term loan facility under the Credit Agreement, on the terms set forth in the related debt commitment letter. The obligations of such financial institutions to provide debt financing under the debt commitment letter are subject to a number of customary conditions. Pursuant to the Merger Agreement, the Company is required to provide Parent with customary cooperation in connection with the debt financing.