v3.26.1
Cover Page - shares
 6 Months Ended
Jun. 30, 2026
Aug. 06, 2026
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-39550  
Entity Registrant Name OppFi Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-1648122  
Entity Address, Address Line One 130 E. Randolph Street  
Entity Address, Address Line Two Suite 3400  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60601  
City Area Code 312  
Local Phone Number 212-8079  
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Entity Trading Symbol OPFI  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Entity Central Index Key 0001818502  
Class A common stock, par value $0.0001 per share    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   85,208,247
Class B Common Stock    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Class V Voting Stock    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   0