v3.26.1
Subsequent Events - Additional Information (Details)
Feb. 24, 2026
USD ($)
$ / shares
shares
Feb. 20, 2026
Balloon
Mar. 06, 2026
$ / shares
shares
Dec. 31, 2025
$ / shares
shares
Dec. 31, 2024
shares
Subsequent Event [Line Items]          
Warrants exercisable price | $ / shares       $ 202.5  
Warrants to purchase an aggregate shares | shares       7,336,872 767,697
Subsequent Event | Allurion Gastric Balloon System          
Subsequent Event [Line Items]          
Average observed residence time for balloon   107 days      
Number of balloons | Balloon   2      
Balloons placed during period   10 months      
Subsequent Event | Roth Capital Partners LLC          
Subsequent Event [Line Items]          
Percentage of gross proceeds from the exercise of the existing warrants 5.00%        
Fees and expenses | $ $ 40,000        
Subsequent Event | Inducement Letter with Exercising Holders | Existing Warrants          
Subsequent Event [Line Items]          
Warrants exercisable price | $ / shares $ 1.15        
Gross proceeds from offering | $ $ 3,100,000        
Subsequent Event | Inducement Letter with Exercising Holders | Initial Exercise Date          
Subsequent Event [Line Items]          
Warrants exercisable price | $ / shares $ 1.15        
Warrant expire on anniversary period 5 years        
Percentage of beneficially own number of shares of common stock 4.99%        
Subsequent Event | Existing Holders Option | Initial Exercise Date          
Subsequent Event [Line Items]          
Percentage of beneficially own number of shares of common stock 9.99%        
Subsequent Event | Common Stock          
Subsequent Event [Line Items]          
Warrants exercisable price | $ / shares     $ 202.5    
Warrants to purchase an aggregate shares | shares     0.056818    
Subsequent Event | Common Stock | Inducement Letter with Exercising Holders | Existing Warrants          
Subsequent Event [Line Items]          
Warrants to purchase an aggregate shares | shares 2,659,565        
Subsequent Event | Common Stock | Inducement Letter with Exercising Holders | New Warrants          
Subsequent Event [Line Items]          
Warrants to purchase an aggregate shares | shares 5,319,130