XML 23 R1.htm IDEA: XBRL DOCUMENT v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 07, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-37687  
Entity Registrant Name EDITAS MEDICINE, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-4097528  
Entity Address, Address Line One 11 Hurley Street  
Entity Address, City or Town Cambridge  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 02141  
City Area Code 617  
Local Phone Number 401-9000  
Title of 12(b) Security Common Stock  
Trading Symbol EDIT  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   89,920,164
Entity Central Index Key 0001650664  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment flag false