| Cover | Feb. 10, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 10, 2022 |
| Entity Registrant Name | Hayward Holdings, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-40208 |
| Entity Tax Identification Number | 82-2060643 |
| Entity Address, Address Line One | 400 Connell Drive |
| Entity Address, Address Line Two | Suite 6100 |
| Entity Address, City or Town | Berkeley Heights |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 07922 |
| City Area Code | 908 |
| Local Phone Number | 351-5400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.001 per share |
| Trading Symbol | HAYW |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001834622 |
