| Document and Entity Information | Mar. 07, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Mar. 07, 2024 |
| Entity Registrant Name | Mind Medicine (MindMed) Inc. |
| Entity Incorporation State Country Code | A1 |
| Entity File Number | 001-40360 |
| Entity Tax Identification Number | 98-1582538 |
| Entity Address Address Line 1 | One World Trade Center |
| Entity Address Address Line 2 | Suite 8500 |
| Entity Address City Or Town | New York |
| Entity Address State Or Province | NY |
| Entity Address Postal Zip Code | 10007 |
| City Area Code | 212 |
| Local Phone Number | 220-6633 |
| Security 12b Title | Common Shares, no par value per share |
| Trading Symbol | MNMD |
| Security Exchange Name | NASDAQ |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001813814 |
