Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.24.1
Subsequent Events - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Feb. 27, 2024
Feb. 23, 2024
Feb. 16, 2024
Feb. 09, 2024
Feb. 02, 2024
Jan. 05, 2024
Oct. 10, 2023
Jul. 06, 2023
Apr. 20, 2023
Feb. 02, 2023
Jan. 03, 2023
Oct. 03, 2022
Dec. 31, 2023
Dec. 31, 2022
Feb. 01, 2022
Feb. 02, 2021
May 19, 2020
Debt instrument face value                             $ 4,600   $ 25,000
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation                         $ 569 $ 1,824      
Restricted Stock Units (RSUs) [Member]                                  
Share settlement for taxes paid related to Restricted Stock Units (Shares)             18,669 4,818 3,103   7,776 61,013          
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation             $ 300 $ 100 $ 100   $ 200 $ 1,800          
Common Stock [Member]                                  
Shares issued, Shares, Share based payment arrangement                         141,604,000 219,596,000      
Share settlement for taxes paid related to Restricted Stock Units (Shares)                         (34,366,000) (61,013,000)      
Subsequent Event [Member] | Holders of Senior Secured Bridge Notes [Member]                                  
Shares issued, Shares, Share based payment arrangement 61,314,000                                
Subsequent Event [Member] | Common Stock [Member]                                  
Share settlement for taxes paid related to Restricted Stock Units (Shares)           2,301,000                      
Subsequent Event [Member] | Common Stock [Member] | Restricted Stock Units (RSUs) [Member]                                  
Shares issued, Shares, Share based payment arrangement           21,160,000                      
Subsequent Event [Member] | New Jersey Senior Secured Bridge Notes [Member]                                  
Aggregate initial principal amount     $ 11,000                            
Debt Instrument Extended Maturity Date         Feb. 16, 2026                        
iAnthus New Jersey LLC | New Jersey Senior Secured Bridge Notes [Member]                                  
Percentage Of Total Outstanding Debt Instrument Principal Amount                   10.00%              
Debt instrument face value                   $ 1,400           $ 11,000  
Debt instrument, interest rate                   12.00%              
Debt Instrument, Maturity Date                   Feb. 02, 2024              
2024 New Jersey Amendment [Member]                                  
Debt Instrument Extended Maturity Date         Feb. 16, 2024                        
2024 New Jersey Amendment [Member] | New Jersey Senior Secured Bridge Notes [Member]                                  
Debt instrument, interest rate     12.00%                            
Non Operational Cash Receipts, Utilization Rate     25.00%                            
Payment towards Principal Amount Outstanding     $ 5,000                            
2024 New Jersey Amendment [Member] | Subsequent Event [Member]                                  
Debt Instrument Extended Maturity Date         Feb. 16, 2024                        
2024 New Jersey Amendment [Member] | Subsequent Event [Member] | New Jersey Senior Secured Bridge Notes [Member]                                  
Debt Instrument, Issuance Date     Feb. 02, 2021                            
Debt instrument, interest rate     12.00%                            
Debt Instrument, Maturity Date     Feb. 02, 2024                            
Non Operational Cash Receipts, Utilization Rate     25.00%                            
Payment towards Principal Amount Outstanding     $ 5,000                            
2024 New Jersey Amendment [Member] | iAnthus New Jersey LLC | New Jersey Senior Secured Bridge Notes [Member]                                  
Percentage Of Total Outstanding Debt Instrument Principal Amount     10.00%                            
Debt instrument face value     $ 1,600                            
2024 New Jersey Amendment [Member] | 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     $ 1,600                            
MA Purchase Agreement [Member] | Subsequent Event [Member]                                  
Debt instrument, interest rate       7.00%                          
Purchase Price of Assets       $ 3,000                          
Purchase Price Paid in Cash       1,000                          
Amount Paid in Installments       $ 2,000                          
NV Purchase Agreement [Member] | Subsequent Event [Member]                                  
Proceeds from sale of business   $ 6,500                              
NV Management Agreement [Member] | Subsequent Event [Member]                                  
Debt instrument, interest rate       8.00%                          
Purchase Price Paid in Cash   $ 3,500