Cover
Oct. 17, 2022
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 17, 2022
Entity File Number 001-38586
Entity Registrant Name RUBIUS THERAPEUTICS, INC.
Entity Central Index Key 0001709401
Entity Tax Identification Number 46-2688109
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 399 Binney Street
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Cambridge
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02139
City Area Code 617
Local Phone Number 679-9600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.001 per share
Trading Symbol RUBY
Security Exchange Name NASDAQ
Entity Emerging Growth Company false