Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Mar. 21, 2022
Document Information [Line Items]    
Document Type 10-K  
Document Annual Report true  
Document Period End Date Dec. 31, 2021  
Current Fiscal Year End Date --12-31  
Document Transition Report false  
Entity File Number 001-41027  
Entity Registrant Name PERIMETER SOLUTIONS, SA  
Entity Incorporation, State or Country Code N4  
Entity Tax Identification Number 98-1632942  
Entity Address, Address Line One 12E rue Guillaume Kroll  
Entity Address, Postal Zip Code L-1882  
Entity Address, Country LU  
Entity Address, City or Town Grand Duchy of Luxembourg  
City Area Code 314  
Local Phone Number 396-7343  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth true  
Entity Ex Transition Period false  
ICFR Auditor Attestation Flag false  
Entity Shell Company false  
Entity Public Float   $ 1.8
Entity Common Stock, Shares Outstanding (in shares)   163,234,542
Documents Incorporated by Reference Portions of the registrant’s definitive proxy statement for its 2022 Annual Meeting of Shareholders, which will be filed within 120 days of December 31, 2021, are incorporated by reference into Part III of this Annual Report on Form 10-K.  
Entity Central Index Key 0001880319  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus FY  
Amendment Flag false  
Common Stock    
Document Information [Line Items]    
Title of 12(b) Security Ordinary Shares, nominal value $1.00 per share  
Trading Symbol PRM  
Security Exchange Name NYSE  
Document Information [Line Items]    
Title of 12(b) Security Warrants for Ordinary Shares  
Trading Symbol PRMFF