Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2025
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Unaudited Interim Financial Information The condensed consolidated financial statements of the Company included herein have been prepared, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America have been condensed or omitted from this report, as is permitted by such rules and regulations. Accordingly, these condensed consolidated financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the “Annual Report”). The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Editas Securities Corporation and Editas Medicine, LLC. All intercompany transactions and balances of the subsidiaries have been eliminated in consolidation. In the opinion of management, the information furnished reflects all adjustments, all of which are of a normal and recurring nature, necessary for a fair presentation of the results for the reported interim periods. The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosure. The three months ended June 30, 2025 and 2024 are referred to as the second quarter of 2025 and 2024, respectively. The results of operations for interim periods are not necessarily indicative of results to be expected for the full year or any other interim period. Summary of Significant Accounting Policies The Company’s significant accounting policies are described in Note 2, “Summary of Significant Accounting Policies,” to the consolidated financial statements included in the Annual Report. There have been no material changes to the significant accounting policies previously disclosed in the Annual Report with the exception of the following: Restructuring The Company records liabilities for costs associated with restructuring activities in the period in which the liability is incurred. Typical costs associated with restructuring activities include, employee termination benefits, contract termination costs and on-going contract costs for which there is no economic benefit. For costs associated with employee terminations in which the employee is subject to an existing benefit arrangement, the post-employment benefits are recognized when probable and estimable. Other employee termination costs are measured and recognized on the communication date, unless there is a required future service period, in which case, the expense is recognized over the service period. Contract termination costs are recognized upon termination of the contract and costs for on-going contracts for which there is no future benefit, are recognized at fair value on the cease-use date. The Company has made estimates and judgments regarding the amount and timing of its restructuring expense and liability, including current and future period termination benefits and other exit costs to be incurred when related actions take place. Restructuring charges are reflected in the Company's condensed consolidated statements of operations. Actual results may differ from these estimates. Refer to Note 12, “Restructuring and Impairment Charges” for further information. Recently Adopted Accounting Pronouncements In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This guidance is intended to enhance the transparency and decision-usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to disclosure regarding rate reconciliation and income taxes paid both in the United States and in foreign jurisdictions. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024 on a prospective basis, with the option to apply the standard retrospectively. Early adoption is permitted. The Company will incorporate the changes in disclosure requirements in its financial statements included in its 2025 Annual Report. Recently Issued Accounting Pronouncements In November 2024, the FASB issued ASU 2024-03 Income Statement - Reporting Comprehensive Income -Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which is intended to improve the disclosure of expenses by providing more detailed information about the types of expenses in commonly presented expense captions. The amendments in this ASU are effective for annual reporting periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted. The amendments can be applied either prospectively or retrospectively. The Company has not early adopted this ASU and is currently evaluating the impact of this new standard on its consolidated financial statements and related disclosures.