v3.19.3
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 05, 2019
Document and Entity Information [Abstract]    
Entity Registrant Name International Money Express, Inc.  
Entity Central Index Key 0001683695  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Common Stock, Shares Outstanding   38,007,611
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Address, State or Province FL