COVER - shares	9 Months Ended
	Sep. 30, 2024	Nov. 04, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
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.
Entity Address, Address Line Two	Suite 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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,098,659
Entity Central Index Key	0001683695
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3