XML 17 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Cover - shares
 9 Months Ended
Sep. 30, 2025
Oct. 30, 2025
Entity Listings [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2025  
Document Transition Report false  
Entity File Number 001-39687  
Entity Registrant Name CompoSecure, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-2749902  
Entity Address, Address Line One 309 Pierce Street  
Entity Address, City or Town Somerset  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 08873  
City Area Code 908  
Local Phone Number 518-0500  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   125,195,366
Amendment Flag false  
Entity Central Index Key 0001823144  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --12-31  
Class A Common Stock, $0.0001 par value per share    
Entity Listings [Line Items]    
Title of 12(b) Security Class A Common Stock, $0.0001 par value per share  
Trading Symbol CMPO  
Security Exchange Name NYSE  
Redeemable Warrants, each whole warrant exercisable for one share of Class A Common Stock    
Entity Listings [Line Items]    
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one share of Class A Common Stock  
Trading Symbol CMPOW  
Security Exchange Name NASDAQ