| Document and Entity Information | Jul. 20, 2021 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | true |
| Entity Central Index Key | 0001818502 |
| Document Type | 8-K/A |
| Document Period End Date | Jul. 20, 2021 |
| Entity Registrant Name | OppFi Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39550 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Description | On July 26, 2021, OppFi Inc. (the “Company”) filed a Current Report on Form 8-K (the “Original Report”) in connection with its business combination with Opportunity Financial, LLC (“OppFi”). The purpose of this amendment to the Original Report is to provide (i) the unaudited consolidated financial statements of OppFi and the accompanying notes required by Item 9.01(a) of Form 8-K, as of June 30, 2021 and 2020 and for the six months ended June 30, 2021 and 2020 (the “Interim Financial Statements”), and (ii) the unaudited pro forma combined financial statements and the accompanying notes required by Item 9.01(b) of Form 8-K, as of June 30, 2021, for the six months ended June 30, 2021 and for the year ended December 31, 2020 (the “Pro Forma Financial Statements”), which information was excluded from the Original 8-K in reliance upon the instructions to such items, as well as to provide OppFi’s Management’s Discussion and Analysis of Financial Condition and Results of Operations relating to the Interim Financial Statements. The Pro Forma Financial Statements included in this Amendment No. 1 to the Original Report (the “Amended Report”) have been presented for informational purposes, are based on various adjustments and assumptions and are not necessarily indicative of what the Company’s consolidated statement of operations or consolidated statement of financial condition actually would have been had the business combination and other adjustments been completed as of the dates indicated or will be for any future periods. |
| Common Class A [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A common stock, par value $0.0001 per share |
| Trading Symbol | OPFI |
| Security Exchange Name | NYSE |
| Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share |
| Trading Symbol | OPFI WS |
| Security Exchange Name | NYSE |
