Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2025
Accounting Policies [Abstract]
Unaudited Interim Financial Information	Unaudited Interim Financial Information The accompanying unaudited interim condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America, or GAAP, for interim financial reporting and as required by Regulation S-X, Rule 10-01. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated annual financial statements for the years ended December 31, 2023 and 2024 and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for a fair presentation. The financial data and other information disclosed in these notes related to the three months ended March 31, 2024 and 2025 are unaudited. These financial statements should be read in conjunction with the audited financial statements and notes thereto for the year ended December 31, 2024 included in the Company’s Annual Report on Form 10-K filed with the SEC on March 27, 2025. The results for the three months ended March 31, 2025 are not necessarily indicative of results to be expected for the year ending December 31, 2025, any other interim periods, or any future year or period. In April 2025, the Company announced that the Board, after considering opportunities to maximize stockholder value following a broad strategic review process, had unanimously approved and adopted the Plan of Dissolution and determined that the Dissolution is advisable and in the best interests of the Company and its stockholders. As the Company continued to evaluate potential strategic alternatives as of March 31, 2025, and as the Plan of Dissolution had not been approved by the Board as of March 31, 2025, and has not yet been brought to a vote of or approved by the Company’s stockholders as of the date of this Quarterly Report, the Company concluded that the liquidation basis of accounting should not be applied as of the balance sheet date. Accordingly, the accompanying condensed consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the ordinary course of business. The condensed consolidated financial statements do not include any adjustments relating to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of the uncertainties described above. The Company has evaluated the presentation under ASC 205, Presentation of Financial Statements: The Liquidation Basis of Accounting and concluded that the Plan of Dissolution is not imminent as it has not yet been approved by the Board or the Company's stockholders.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740), Improvements to Income Tax Disclosures, or ASU 2023-09, to enhance the transparency and decision usefulness of income tax disclosures. The enhancement will provide information to better assess how an entity's operations and related tax disclosures, including total income taxes paid, to evaluate income tax risks and opportunities. ASU No. 2023-09 is effective for annual periods beginning after December 15, 2024 and early adoption is permitted. The Company is adopting this ASU prospectively for the period ending December 31, 2025, and impacts only our disclosures, with no impacts to our consolidated financial position, results of operations or cash flows.
Recently Issued Accounting Pronouncements Not Yet Adopted	Recently Issued Accounting Pronouncements Not Yet Adopted In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, or ASU No. 2024-03, which is intended to provide more detailed information about specified categories of expenses (purchases of inventory, employee compensation, depreciation and amortization) included in certain expense captions presented on the consolidated statement of operations. The guidance in this ASU is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either (1) prospectively to financial statements issued for periods after the effective date of this ASU or (2) retrospectively to all prior periods presented in the consolidated financial statements. The Company is currently evaluating the effect of this pronouncement on its consolidated financial statements and footnote disclosures.

Third Harmonic Bio, Inc. 10-Q