| Document and Entity Information | Apr. 24, 2024 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Apr. 24, 2024 |
| Entity Registrant Name | BIO-TECHNE CORPORATION |
| Entity Incorporation, State or Country Code | MN |
| Entity File Number | 0-17272 |
| Entity Tax Identification Number | 41-1427402 |
| Entity Address, Address Line One | 614 McKinley Place NE |
| Entity Address, City or Town | Minneapolis |
| Entity Address State Or Province | MN |
| Entity Address, Postal Zip Code | 55413 |
| City Area Code | 612 |
| Local Phone Number | 379-8854 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | TECH |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000842023 |
| Amendment Flag | false |
