Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2020
Apr. 19, 2021
Jun. 30, 2020
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Registrant Name BurgerFi International, Inc.    
Entity Central Index Key 0001723580    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Common Stock, Shares Outstanding   17,888,476  
Entity Public Float     $ 69,972,352
Document Annual Report true    
Document Transition Report false    
Entity Interactive Data Current Yes    
Entity File Number 001-38417    
Entity Tax Identification Number 82-2418815    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 105 U.S. Highway 1    
Entity Address, City or Town North Palm Beach    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33408    
City Area Code (561)    
Local Phone Number 844-5528    
Common Stock Par Value 0.0001 Per Share 2 [Member]      
Document Information [Line Items]      
Trading Symbol BFI    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Security Exchange Name NASDAQ    
Redeemable Warrants Each Exercisable For One Share Of Common Stock At An Exercise Price of 11.50 per share 1 [Member]      
Document Information [Line Items]      
Trading Symbol BFIIW    
Title of 12(b) Security Redeemable warrants, each exercisable for one share of common stock at an exercise price of $11.50 per share    
Security Exchange Name NASDAQ