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Document and Entity Information - USD ($)
 12 Months Ended
Aug. 19, 2022
Jun. 30, 2024
Aug. 26, 2024
Dec. 31, 2023
Document and Entity Information        
Document Type   10-K    
Document Annual Report   true    
Document Period End Date   Jun. 30, 2024    
Document Transition Report   false    
Entity File Number   000-23125    
Entity Registrant Name   OSI SYSTEMS, INC.    
Entity Incorporation, State or Country Code   DE    
Entity Tax Identification Number   33-0238801    
Entity Address, Address Line One   12525 Chadron Avenue    
Entity Address, City or Town   Hawthorne    
Entity Address, State or Province   CA    
Entity Address, Postal Zip Code   90250    
City Area Code   310    
Local Phone Number   978-0516    
Title of 12(b) Security   Common Stock, $0.001 par value    
Trading Symbol   OSIS    
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 Common Stock, Shares Outstanding     16,569,742  
Entity Central Index Key   0001039065    
Document Fiscal Year Focus   2024    
Document Fiscal Period Focus   FY    
Current Fiscal Year End Date   --06-30    
Amendment Flag   false    
Entity Public Float       $ 2,075,455
Auditor Firm ID 659 248    
Auditor Name Moss Adams LLP GRANT THORNTON LLP    
Auditor Location Los Angeles, California Los Angeles, California