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COVER - USD ($)
 12 Months Ended
Jun. 30, 2024
Aug. 21, 2024
Dec. 29, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jun. 30, 2024    
Current Fiscal Year End Date --06-30    
Document Transition Report false    
Entity File Number 0-22818    
Entity Registrant Name THE HAIN CELESTIAL GROUP, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-3240619    
Entity Address, Address Line One 221 River Street    
Entity Address, City or Town Hoboken    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07030    
City Area Code 516    
Local Phone Number 587-5000    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol HAIN    
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     $ 978,993,948
Entity Common Stock, Shares Outstanding   89,844,564  
Documents Incorporated by Reference

Portions of The Hain Celestial Group, Inc. Definitive Proxy Statement for the 2024 Annual Meeting of Stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K.

    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000910406