| Document and Entity Information | Dec. 29, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 29, 2023 |
| Entity Registrant Name | Akumin Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39479 |
| Entity Tax Identification Number | 88-4139425 |
| Entity Address Address Line 1 | 8300 W. Sunrise Boulevard |
| Entity Address City Or Town | Plantation |
| Entity Address State Or Province | FL |
| Entity Address Postal Zip Code | 33322 |
| City Area Code | 844 |
| Local Phone Number | 730-0050 |
| 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 | AKUMQ |
| Security Exchange Name | NONE |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001776197 |
| Amendment Flag | false |
