v3.25.4
COVER - USD ($)
 12 Months Ended
Dec. 31, 2025
Mar. 03, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-37986    
Entity Registrant Name INTERNATIONAL MONEY EXPRESS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-4219082    
Entity Address, Address Line One 9100 South Dadeland Blvd., Ste. 1100    
Entity Address, City or Town Miami    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33156    
City Area Code 305    
Local Phone Number 671-8000    
Title of 12(b) Security Common stock ($0.0001 par value)    
Trading Symbol IMXI    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 281,367,974
Entity Common Stock, Shares Outstanding   30,136,733  
Documents Incorporated by Reference Part III of this Form 10-K is incorporated by reference to an amendment of this Form 10-K or a definitive Proxy Statement to be delivered to stockholders at a later date in connection with the 2026 Annual Meeting of Stockholders.    
Entity Central Index Key 0001683695    
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY