| Document and Entity Information | Dec. 22, 2021 |
| Cover [Abstract] | |
| Entity Registrant Name | HAIN CELESTIAL GROUP INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000910406 |
| Document Type | 8-K |
| Document Period End Date | Dec. 22, 2021 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 0-22818 |
| Entity Tax Identification Number | 22-3240619 |
| Entity Address, Address Line One | 1111 Marcus Avenue |
| Entity Address, City or Town | Lake Success |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11042 |
| City Area Code | (516) |
| Local Phone Number | 587-5000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, par value $.01 per share |
| Trading Symbol | HAIN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
