v3.22.2.2
Cover
Nov. 29, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 29, 2022
Entity Registrant Name Allogene Therapeutics, Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 001-38693
Entity Tax Identification Number 82-3562771
Entity Address, Address Line One 210 East Grand Avenue
Entity Address, City or Town South San Francisco
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94080
City Area Code 650
Local Phone Number 457-2700
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.001 par value per share
Trading Symbol ALLO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0001737287
Amendment Flag false