v3.26.1
Cover Page - shares
 9 Months Ended
Mar. 31, 2026
May 05, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
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 $.01 per share  
Trading Symbol HAIN  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   90,253,483
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0000910406  
Current Fiscal Year End Date --06-30