| Document And Entity Information | Aug. 14, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 14, 2023 |
| Entity Registrant Name | Mind Medicine (MindMed) Inc. |
| Entity Central Index Key | 0001813814 |
| Entity Emerging Growth Company | true |
| Securities Act File Number | 001-40360 |
| Entity Incorporation, State or Country Code | NY |
| Entity Tax Identification Number | 98-1582438 |
| Entity Address, Address Line One | One World Trade Center |
| Entity Address, Address Line Two | 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 |
| Entity Information, Former Legal or Registered Name | Not Applicable |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Ex Transition Period | false |
| Title of 12(b) Security | Common Shares |
| Trading Symbol | MNMD |
| Security Exchange Name | NASDAQ |
