Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Narrative (Details)

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Commitments and Contingencies - Narrative (Details)
$ in Millions
1 Months Ended 18 Months Ended
Jul. 05, 2023
USD ($)
Jan. 11, 2023
USD ($)
shares
Mar. 28, 2022
USD ($)
Aug. 11, 2021
USD ($)
claim
May 21, 2021
USD ($)
Feb. 29, 2020
USD ($)
Aug. 26, 2022
USD ($)
Jan. 01, 2024
USD ($)
shares
Jan. 02, 2023
shares
Commitments And Contingencies [Line Items]                  
Issuance of common stock (in shares) | shares               26,832,691 26,832,691
Conditional purchase obligations               $ 5.7  
Lion Point Capital Allegation | Pending Litigation                  
Commitments And Contingencies [Line Items]                  
Loss contingency, damages sought             $ 26.0    
Second 82nd SM, LLC c BF NY 82, LLC, BurgerFi International, LLC and BurgerFi International, Inc. | Pending Litigation                  
Commitments And Contingencies [Line Items]                  
Loss contingency, damages sought       $ 1.5          
Pending claims | claim       7          
Second 82nd SM, LLC c BF NY 82, LLC, BurgerFi International, LLC and BurgerFi International, Inc. | Settled Litigation                  
Commitments And Contingencies [Line Items]                  
Loss contingency, damages sought $ 1.2                
Burger Guys of Dania Pointe, et. al | Pending Litigation                  
Commitments And Contingencies [Line Items]                  
Loss contingency, damages sought         $ 2.0        
All Round Food Bakery Products, Inc. v. BurgerFi International, LLC and Neri’s Bakery Products, Inc. et al | Pending Litigation                  
Commitments And Contingencies [Line Items]                  
Loss contingency, damages sought           $ 1.0      
John Rosatti, as Trustee of the John Rosatti Revocable Trust v. BurgerFi International, Inc | Settled Litigation                  
Commitments And Contingencies [Line Items]                  
Loss contingency, damages sought     $ 10.0            
Loss contingency payments   $ 0.5              
Issuance of common stock (in shares) | shares   200,000              
Loss contingency, damages paid, value   $ 0.8              
Employee Retention Claims                  
Commitments And Contingencies [Line Items]                  
Estimate of possible loss               $ 0.5