v3.25.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2025
Jul. 23, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Registrant Name Enova International, Inc.  
Entity Central Index Key 0001529864  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business false  
Title of 12(b) Security Common Stock, $.00001 par value per share  
Trading Symbol ENVA  
Name of Exchange of which registered NYSE  
Entity Common Stock, Shares Outstanding   25,012,613
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity File Number 1-35503  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 45-3190813  
Entity Address, Address Line One 175 West Jackson Blvd.  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60604  
City Area Code 312  
Local Phone Number 568-4200  
Document Quarterly Report true  
Document Transition Report false