Document and Entity Information	12 Months Ended
	Dec. 31, 2019 shares
Document and Entity Information [Abstract]
Entity Registrant Name	Gamida Cell Ltd.
Entity Central Index Key	0001600847
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding	33,670,926
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	L3
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Entity File Number	001-38716