v3.25.2
Cover - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2025
Aug. 14, 2025
Dec. 31, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jun. 30, 2025    
Current Fiscal Year End Date --06-30    
Document Transition Report false    
Entity File Number 001-36092    
Entity Registrant Name Premier, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 35-2477140    
Entity Address, Address Line One 13520 Ballantyne Corporate Place    
Entity Address, City or Town Charlotte,    
Entity Address, State or Province NC    
Entity Address, Postal Zip Code 28277    
City Area Code 704    
Local Phone Number 357-0022    
Title of 12(b) Security Class A Common Stock, $0.01 Par Value    
Trading Symbol PINC    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 1,929.3
Entity Common Stock, Shares Outstanding   82,549,641  
Documents Incorporated by Reference
The registrant's definitive proxy statement for its 2025 Annual Meeting of Stockholders to be held on or about December 5, 2025 is incorporated by reference into Part III hereof to the extent described herein.
    
Entity Central Index Key 0001577916    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false