| Document and Entity Information | Nov. 20, 2024 |
| Document And Entity Information [Line Items] | |
| Document Type | 8-K12B |
| Document Period End Date | Nov. 20, 2024 |
| Entity Registrant Name | PERIMETER SOLUTIONS, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-41027 |
| Entity Tax Identification Number | 98-1632942 |
| Entity Address Address Line 1 | 8000 Maryland Ave. |
| Entity Address Address Line 2 | Suite 350 |
| Entity Address City Or Town | Clayton |
| Entity Address State Or Province | MO |
| Entity Address Postal Zip Code | 63105 |
| City Area Code | 314 |
| Local Phone Number | 396-7343 |
| Entity Information Former Legal Or Registered Name | Perimeter Solutions, SA |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common stock, par value $0.0001 per share |
| Trading Symbol | PRM |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Current Fiscal Year End Date | --12-31 |
| Entity Central Index Key | 0001880319 |
| Amendment Flag | false |
| Former Address [Member] | |
| Document And Entity Information [Line Items] | |
| Entity Address Address Line 1 | 28, Boulevard F.W. Raiffeisen |
| Entity Address City Or Town | Grand Duchy of Luxembourg |
| Entity Address Country | LU |
| Entity Address Postal Zip Code | L-2411 |
