Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.23.1
Subsequent Events - Additional Information (Detail) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Mar. 03, 2023
Feb. 02, 2023
Jan. 05, 2023
Feb. 02, 2021
Dec. 31, 2022
Feb. 01, 2022
Debt instrument face value           $ 4,600
Restricted Stock Units (RSUs) [Member]            
Share based payment arrangement, Shares withheld for tax withholding obligation         61,013  
Share based payment arrangement, Decrease for tax withholding obligation         $ 1,824  
Common Stock [Member] | Restricted Stock Units (RSUs) [Member]            
Share based payment arrangement, Shares withheld for tax withholding obligation         (61,013)  
Subsequent Event [Member]            
Share based payment arrangement, Decrease for tax withholding obligation     $ 200      
Subsequent Event [Member] | Common Stock [Member]            
Share based payment arrangement, Shares withheld for tax withholding obligation     7,776      
Subsequent Event [Member] | Common Stock [Member] | Restricted Stock Units (RSUs) [Member]            
Shares issued, Shares, Share based payment arrangement     7,853      
Subsequent Event [Member] | Common Stock [Member] | Restricted Stock Units (RSUs) [Member] | Julius Kalcevich [Member]            
Shares issued, Shares, Share based payment arrangement 27,929          
Subsequent Event [Member] | Grassroots Vermont Management Services LLC [Member]            
Proceeds from sale of business   $ 200        
iAnthus New Jersey LLC | New Jersey Senior Secured Bridge Notes [Member]            
Debt instrument face value       $ 11,000    
Debt Instrument, Maturity Date   Feb. 02, 2021   Feb. 02, 2023    
iAnthus New Jersey LLC | Subsequent Event [Member] | New Jersey Senior Secured Bridge Notes [Member]            
Percentage Of Total Outstanding Debt Instrument Principal Amount   10.00%        
Debt instrument face value   $ 1,400        
Debt instrument, interest rate   12.00%        
Debt Instrument, Maturity Date   Feb. 02, 2024