Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
Jun. 30, 2020
Aug. 21, 2020
Dec. 31, 2019
Document Information [Line Items]      
Entity Central Index Key 0000842023    
Entity Registrant Name BIO-TECHNE Corp    
Amendment Flag false    
Current Fiscal Year End Date --06-30    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jun. 30, 2020    
Document Transition Report false    
Entity File Number 0-17272    
Entity Incorporation, State or Country Code MN    
Entity Tax Identification Number 41-1427402    
Entity Address, Address Line One 614 McKinley Place N.E.    
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    
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol TECH    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 8,400,000,000
Entity Common Stock, Shares Outstanding   38,550,371