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Document and Entity Information
Nov. 22, 2019
Cover [Abstract]  
Entity Registrant Name SANGAMO THERAPEUTICS, INC
Amendment Flag false
Entity Central Index Key 0001001233
Document Type 8-K
Document Period End Date Nov. 22, 2019
Entity Incorporation State Country Code DE
Entity File Number 000-30171
Entity Tax Identification Number 68-0359556
Entity Address, Address Line One 501 Canal Blvd.
Entity Address, City or Town Richmond
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94804
City Area Code (510)
Local Phone Number 970-6000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.01 par value per share
Trading Symbol SGMO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false