Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

v3.24.0.1
Long-Term Debt - Additional Information (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Feb. 02, 2023
Jun. 24, 2022
Feb. 02, 2021
Jul. 13, 2020
Dec. 20, 2019
Sep. 30, 2019
May 02, 2019
Mar. 18, 2019
May 14, 2018
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Feb. 01, 2022
Jul. 10, 2020
Debt Instrument [Line Items]                                
Debt instrument face value                             $ 4,600  
Interest expense                   $ 0 $ 0 $ 0 $ 800      
Accretion expense                   994 1,020 2,946 2,561      
Secured debt long term fair value                   148,969   148,969   $ 132,912    
Loss on extinguishment of debt                   0 0 (1,288) (316,577)      
Share issuance - recapitalization transaction value                         455,443      
Interest accrued on current and long term debt                   $ 0   $ 0   0    
Other Equity Method Investees [Member]                                
Debt Instrument [Line Items]                                
Company's acquisition equity interests                   5.00%   5.00%        
June Secured Debentures [Member]                                
Debt Instrument [Line Items]                                
Interest expense                   $ 2,200 2,100 $ 6,400 2,200      
Accretion expense                   700 700 2,200 800      
Secured debt long term fair value                   115,977   115,977   103,612    
June Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value   $ 99,700                            
Debt instrument maturity date   Jun. 24, 2027                            
June Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member] | Maximum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest percentage on event of default   11.00%                            
June Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member] | Minimum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest rate stated percentage   8.00%                            
June Unsecured Debentures [Member]                                
Debt Instrument [Line Items]                                
Interest expense                   400 400 1,300 400      
Accretion expense                   200 200 700 200      
June Unsecured Debentures [Member] | Secured Debenture Purchase Agreement [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value   $ 20,000                            
Debt instrument maturity date   Jun. 24, 2027                            
June Unsecured Debentures [Member] | Secured Debenture Purchase Agreement [Member] | Maximum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest percentage on event of default   11.00%                            
June Unsecured Debentures [Member] | Secured Debenture Purchase Agreement [Member] | Minimum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest rate stated percentage   8.00%                            
Additional Secured Debentures [Member]                                
Debt Instrument [Line Items]                                
Interest expense                   600 500 1,600 $ 500      
Secured debt long term fair value   $ 25,000                            
Additional Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value   $ 25,000                            
Debt instrument maturity date   Jun. 24, 2027                            
Additional Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member] | Maximum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest percentage on event of default   11.00%                            
Additional Secured Debentures [Member] | Secured Debenture Purchase Agreement [Member] | Minimum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest rate stated percentage   8.00%                            
Extinguishment of Non Recapitalization Transaction Debts [Member]                                
Debt Instrument [Line Items]                                
Unamortized debt issuance costs                   0   0   100    
Debt issuance costs, net                   $ 700   700   700    
Common Stock [Member]                                
Debt Instrument [Line Items]                                
Share issuance - Recapitalization Transaction, Shares                         6,072,580      
Recapitalization transaction [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value                               $ 14,700
Debt instrument, face amount                       $ 119,700        
Percentage of outstanding shares Held   2.75%               97.25%   97.25%        
Debt conversion, original debt, amount                       $ 238,200        
Interest accrued on current and long term debt                   $ 56,300   $ 56,300        
Recapitalization transaction [Member] | Common Stock [Member]                                
Debt Instrument [Line Items]                                
Share issuance - Recapitalization Transaction, Shares                       6,072,580        
Share issuance - recapitalization transaction value                       $ 455,400        
Private Placement [Member] | March 2019 Equity Warrants [Member]                                
Debt Instrument [Line Items]                                
Debt instrument maturity date               Mar. 15, 2023                
Interest rate on secured notes               8.00%                
Debt instrument terms of interest payment               payable quarterly                
Class of warrants or rights number of shares covered by warrants or rights               2,177,291                
Class of warrants or rights exercise price per share               $ 6.43                
Percentage of total interest that can be paid through cash or in kind route               50.00%                
Private Placement [Member] | May 2019 Equity Warrants [Member]                                
Debt Instrument [Line Items]                                
Debt instrument maturity date             Mar. 15, 2023                  
Interest rate on secured notes             8.00%                  
Debt instrument terms of interest payment             payable quarterly                  
Class of warrants or rights number of shares covered by warrants or rights             1,555,207                  
Class of warrants or rights exercise price per share             $ 6.43                  
Percentage of total interest that can be paid through cash or in kind route             50.00%                  
Class of warrant or rights expiry date             Mar. 15, 2022                  
I Anthus New Jersey LLC [Member]                                
Debt Instrument [Line Items]                                
Description about qualified financing                       “Qualified Financing” means a transaction or series of related transactions resulting in net proceeds to the Company of not less than $10 million from the subscription of the Company’s securities, including, but not limited to, a private placement or rights offering.        
Lenders [Member] | June Secured Debentures [Member] | Minimum [Member] | Other Equity Method Investees [Member]                                
Debt Instrument [Line Items]                                
Company's acquisition equity interests   5.00%                            
Lenders [Member] | June Unsecured Debentures [Member] | Minimum [Member] | Other Equity Method Investees [Member]                                
Debt Instrument [Line Items]                                
Company's acquisition equity interests   5.00%                            
Secured Debt [Member]                                
Debt Instrument [Line Items]                                
Debt instrument debt default amount   $ 97,500                            
Long term debt default amount accrued interest   $ 38,500                            
Secured Debt [Member] | Recapitalization transaction [Member]                                
Debt Instrument [Line Items]                                
Debt instrument maturity date   Jul. 13, 2025                            
Interest rate on secured notes   13.00%                            
Secured debt long term fair value                   99,400   $ 99,400        
Debt instrument, face amount                       119,700        
Loss on extinguishment of debt                       316,600        
Debt conversion, original debt, amount   $ 14,700                            
Secured Debt [Member] | Tranche One [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value                 $ 40,000              
Debt instrument maturity date                 May 14, 2021              
Interest expense                   0 0 0 $ 3,200      
Debt instrument debt default amount   60,000               97,500   97,500        
Long term debt default amount accrued interest   11,900               38,500   38,500        
Long term debt exit fee payable principal and interest   16,200                            
Long term debt exit fee payable   10,300                            
Interest payable on exit fee   $ 5,900                            
Interest Rate Percentage On The Exit Fee   16.00%                            
Secured Debt [Member] | Tranche One [Member] | Maximum [Member]                                
Debt Instrument [Line Items]                                
Debt instrument interest rate stated percentage                 16.00%              
Secured Debt [Member] | Tranche Two [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value           $ 20,000                    
Debt instrument maturity date           May 14, 2021                    
Interest rate on secured notes   16.00%       13.00%                    
Interest expense                   0 0 0 1,600      
Secured Debt [Member] | Tranche Three [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value         $ 36,200                      
Debt instrument maturity date         May 14, 2021                      
Interest rate on secured notes   16.00%     13.00%                      
Interest expense                   0 0 0 2,800      
Secured Debt [Member] | Tranche Four [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value       $ 14,700                        
Debt instrument maturity date       Jul. 13, 2025                        
Interest rate on secured notes       8.00%                        
Interest expense                   0 0 0 700      
Accretion expense                   0 0 0 200      
New Jersey Senior Secured Bridge Notes [Member]                                
Debt Instrument [Line Items]                                
Percentage of outstanding shares Held   5.00%                            
New Jersey Senior Secured Bridge Notes [Member] | I Anthus New Jersey LLC [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value $ 1,400   $ 11,000                          
Debt instrument maturity date Feb. 02, 2024   Feb. 02, 2023                          
Interest rate on secured notes     14.00%                          
Interest expense                   400 300 1,200 1,100      
Accretion expense                   100 100 100 300      
Threshold limit of qualified financing, net proceeds not less than the subscription of securities                       10,000        
Loss on extinguishment of debt                   0   1,300        
Percentage Of Total Outstanding Debt Instrument Principal Amount 10.00%                              
Debt instrument interest rate stated percentage 12.00%                              
New Jersey Senior Secured Bridge Notes [Member] | Prospective Recapitalization Transaction [Member] | I Anthus New Jersey LLC [Member]                                
Debt Instrument [Line Items]                                
Interest rate on secured notes     8.00%                          
New Jersey Senior Secured Bridge Notes [Member] | Prospective Default [Member] | I Anthus New Jersey LLC [Member]                                
Debt Instrument [Line Items]                                
Interest rate on secured notes     25.00%                          
March 2019 Debentures [Member] | Private Placement [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value               $ 35,000                
Interest expense                   0 0 0 1,400      
Accretion expense                   0 0 0 700      
May 2019 Debentures [Member] | Private Placement [Member]                                
Debt Instrument [Line Items]                                
Debt instrument face value             $ 25,000                  
Interest expense                   0 0 0 1,000      
Accretion expense                   0 $ 0 0 $ 400      
Unsecured Debt [Member]                                
Debt Instrument [Line Items]                                
Debt instrument debt default amount   $ 60,000                            
Long term debt default amount accrued interest   $ 11,900                            
Unsecured Debt [Member] | Recapitalization transaction [Member]                                
Debt Instrument [Line Items]                                
Interest rate on secured notes   8.00%                            
Debt conversion, original debt, amount                       238,200        
Secured Debt and Unsecured Debt [Member]                                
Debt Instrument [Line Items]                                
Long term debt default amount accrued additional fess and interest   $ 16,200                            
Secured Debt and Unsecured Debt [Member] | Recapitalization transaction [Member]                                
Debt Instrument [Line Items]                                
Unamortized debt issuance costs                   15,600   15,600   18,400    
Debt issuance costs, net                   $ 20,400   $ 20,400   $ 20,300