XML 24 R1.htm IDEA: XBRL DOCUMENT v3.23.3
Cover - shares
 9 Months Ended
Sep. 30, 2023
Oct. 27, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2023  
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 Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   81,673,688
Entity Central Index Key 0001650664  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q3  
Amendment flag false