| Cover | Oct. 19, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 19, 2023 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-38716 |
| Entity Registrant Name | Gamida Cell Ltd. |
| Entity Central Index Key | 0001600847 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | L3 |
| Entity Address, Address Line One | 116 Huntington Avenue |
| Entity Address, City or Town | Boston |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02116 |
| City Area Code | 617 |
| Local Phone Number | 892-9080 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary Shares, NIS 0.01 par value |
| Trading Symbol | GMDA |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
