v3.25.2
Cover Page - shares
 6 Months Ended
Jun. 30, 2025
Aug. 01, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-41027  
Entity Registrant Name PERIMETER SOLUTIONS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 33-2098357  
Entity Address, Address Line One 8000 Maryland Avenue,  
Entity Address, Address Line Two 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  
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol PRM  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   146,452,138
Entity Central Index Key 0001880319  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment Flag false