Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v3.23.1
Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Feb. 06, 2023
Feb. 02, 2023
Jun. 24, 2022
Feb. 02, 2021
Dec. 31, 2022
Dec. 31, 2021
Feb. 01, 2022
Jan. 01, 2022
Net Cash Provided by (Used in) Operating Activities         $ (19,496) $ 16,148    
Impairment loss         30,551 7,367    
Net loss         (449,391) (77,490)    
Accumulated deficit         (1,251,023) (801,632)   $ (801,632)
Debt instrument face amount             $ 4,600  
Restricted cash         70 3,334    
Impairment of right of use asset         3,000 300    
Impairment loss         30,600 5,500    
Impairment loss related to property plant and equipment         $ 2,700 100    
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]         Impairment loss      
Reporting unit Percentage of fair value in excess of carrying amount         50.00%      
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)         $ 24,800 $ 5,200    
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]           Impairment loss    
Assets held for sale         200 $ 0    
Goodwill         $ 0 $ 0    
Common Stock, Shares, Issued         6,403,289,000 6,403,289,000    
Common Stock, Shares, Outstanding         171,718,000 171,718,000    
iAnthus Capital Management LLC ICM [Member]                
Impairment of right of use asset         $ 100      
Impairment loss $ 700 $ 700     700      
Impairment loss related to property plant and equipment   $ 100     100 $ 100    
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 600       100      
GreenMart Of Nevada NLV LLC GMNV [Member]                
Impairment of right of use asset         3,000      
Impairment loss related to property plant and equipment         2,700      
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)         24,100      
Property, Plant and Equipment [Member] | GreenMart Of Nevada NLV LLC GMNV [Member]                
Impairment loss         29,900      
Right Of Use Asset [Member] | GreenMart Of Nevada NLV LLC GMNV [Member]                
Impairment loss         29,900      
Finite-Lived Intangible Assets [Member] | GreenMart Of Nevada NLV LLC GMNV [Member]                
Impairment loss         $ 29,900      
License [Member]                
Useful life of intangible assets         15 years      
Minimum [Member] | Trademarks [Member]                
Useful life of intangible assets         7 years      
Minimum [Member] | Other Intangible Assets [Member]                
Useful life of intangible assets         1 year      
Maximum [Member] | Trademarks [Member]                
Useful life of intangible assets         15 years      
Maximum [Member] | Other Intangible Assets [Member]                
Useful life of intangible assets         5 years      
Recapitalization Transaction [Member]                
Stock issued during period, shares, new issues     6,072,580          
Percentage of outstanding shares Held     2.75%          
Common Stock, Shares, Issued     6,244,298          
Common Stock, Shares, Outstanding     6,244,298          
Recapitalization Transaction [Member] | Secured Notes Conversion to June Secured Debentures [Member]                
Debt conversion, original debt, amount     $ 5,000          
Recapitalization Transaction [Member] | Existing Shareholders [Member]                
Common Stock, Shares, Outstanding     171,718          
Secured Debt [Member] | Secured Lenders [Member] | Secured Debenture Purchase Agreement [Member]                
Debt instrument face amount     $ 99,700          
Interest rate on secured notes     8.00%          
Debt instrument maturity date     Jun. 24, 2027          
Debt instrument, interest rate     8.00%          
Debt instrument interest percentage on event of default     11.00%          
Debt instrument, redemption price, percentage of principal amount redeemed     103.00%          
Percentage of total outstanding debt instrument principal amount     90.00%          
Secured Debt [Member] | Gotham Green Partners, LLC and Affiliates [Member] | Secured Debenture Purchase Agreement [Member]                
Percentage of outstanding shares Held     50.00%          
Maximum threshold remuneration payable to director     $ 25          
Secured Debt [Member] | Recapitalization Transaction [Member]                
Interest rate on secured notes     13.00%          
Debt conversion, original debt, amount     $ 14,700          
Debt instrument maturity date     Jul. 13, 2025          
Secured Debt [Member] | Recapitalization Transaction [Member] | Secured Notes Conversion to June Secured Debentures [Member]                
Debt conversion, original debt, amount     $ 99,700          
Secured Debt [Member] | Recapitalization Transaction [Member] | Secured Lenders [Member]                
Stock issued during period, shares, new issues     3,036,290          
Percentage of outstanding shares Held     48.625%          
Unsecured Debt [Member] | UnSecured Debenture Purchase Agreement [Member]                
Debt instrument face amount     $ 20,000          
Debt instrument maturity date     Jun. 24, 2027          
Debt instrument, interest rate     8.00%          
Debt instrument interest percentage on event of default     11.00%          
Debt instrument, redemption price, percentage of principal amount redeemed     103.00%          
Percentage of total outstanding debt instrument principal amount     90.00%          
Unsecured Debt [Member] | Secured Lenders [Member] | UnSecured Debenture Purchase Agreement [Member]                
Debt instrument face amount     $ 5,000          
Unsecured Debt [Member] | Unsecured Lenders [Member] | UnSecured Debenture Purchase Agreement [Member]                
Debt instrument face amount     $ 15,000          
Unsecured Debt [Member] | Recapitalization Transaction [Member]                
Interest rate on secured notes     8.00%          
Unsecured Debt [Member] | Recapitalization Transaction [Member] | Conversion to June Unsecured Debentures                 
Debt conversion, original debt, amount     $ 15,000          
Unsecured Debt [Member] | Recapitalization Transaction [Member] | Unsecured Lenders [Member]                
Stock issued during period, shares, new issues     3,036,290          
Percentage of outstanding shares Held     48.625%          
New Jersey Senior Secured Bridge Notes [Member]                
Percentage of outstanding shares Held     5.00%          
New Jersey Senior Secured Bridge Notes [Member] | I Anthus New Jersey LLC [Member]                
Debt instrument face amount       $ 11,000        
Interest rate on secured notes       14.00%        
Debt instrument maturity date   Feb. 02, 2021   Feb. 02, 2023        
Additional Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member]                
Debt instrument face amount     $ 25,000          
Tranche Four Secured Notes [Member] | Funds Held In Escrow [Member]                
Restricted cash         $ 100 $ 3,300