| Cover - USD ($) $ in Millions | 12 Months Ended | ||
| Dec. 31, 2022 | Feb. 28, 2023 | Jun. 30, 2022 | |
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | false | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Document Period End Date | Dec. 31, 2022 | ||
| Document Fiscal Period Focus | FY | ||
| Document Fiscal Year Focus | 2022 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity File Number | 001-40969 | ||
| Entity Registrant Name | ENTRADA THERAPEUTICS, INC. | ||
| Entity Central Index Key | 0001689375 | ||
| Entity Tax Identification Number | 81-3983399 | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Address, Address Line One | One Design Center Place | ||
| Entity Address, Address Line Two | Suite 17-500 | ||
| Entity Address, City or Town | Boston | ||
| Entity Address, State or Province | MA | ||
| Entity Address, Postal Zip Code | 02210 | ||
| City Area Code | 857 | ||
| Local Phone Number | 520-9158 | ||
| Title of 12(b) Security | Common Stock, par value $0.0001 per share | ||
| Trading Symbol | TRDA | ||
| Security Exchange Name | NASDAQ | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | true | ||
| Elected Not To Use the Extended Transition Period | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 274.4 | ||
| Entity Common Stock, Shares Outstanding | 33,076,359 | ||
| Documents Incorporated by Reference [Text Block] | Portions of the registrant's definitive Proxy Statement for its 2023 Annual Meeting of Stockholders, which the registrant filed pursuant to Regulation 14A with the Securities and Exchange Commission not later than 120 days after the registrant's fiscal year ended December 31, 2022, are incorporated by reference into Part III of the registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022 | ||
| ICFR Auditor Attestation Flag | false | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Auditor Firm ID | 42 | ||
| Auditor Name | Ernst & Young LLP | ||
| Auditor Location | Boston, Massachusetts | ||
| Former Address [Member] | |||
| Document Information [Line Items] | |||
| Entity Address, Address Line One | 6 Tide Street | ||
| Entity Address, City or Town | Boston | ||
| Entity Address, State or Province | MA | ||
| Entity Address, Postal Zip Code | 02210 |
