XML 69 R58.htm IDEA: XBRL DOCUMENT v3.22.0.1
Related Party Transactions - Narrative (Detail)
$ in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
Feb. 28, 2021
USD ($)
Jan. 31, 2021
USD ($)
Nov. 30, 2019
USD ($)
May 31, 2019
USD ($)
installment
Aug. 31, 2018
USD ($)
Dec. 31, 2016
USD ($)
Nov. 30, 2016
USD ($)
Dec. 31, 2021
USD ($)
agreement
Dec. 31, 2020
USD ($)
Debt Disclosure [Line Items]                    
Company received amount from agreement $ 0.5           $ 0.5      
Invested amount for research and development           $ 1.5        
Number of offtake supply agreements (in agreements) | agreement                 4  
Number of terminable offtake supply agreements (in agreements) | agreement                 2  
Accrued interest                 $ 10.9 $ 10.7
Liquidated damages                   0.9
Offtake agreement exercise period                 1 year  
Offtake agreement purchase period                 10 years  
Other long-term debt               $ 5.0    
Stockholder                    
Debt Disclosure [Line Items]                    
Line of credit facility, interest rate                 0.38%  
Debt instrument, increase, accrued interest                   0.1
Other long-term debt                 $ 5.1  
Repayment period under prepayment agreement               5 years    
Amount of repayment under prepayment agreement               $ 7.5    
Repayment percentage of prepayment agreement amount               150.00%    
Loan facility term                 5 years  
Stockholder | LIBOR                    
Debt Disclosure [Line Items]                    
Line of credit facility, interest rate                 0.25%  
Unsecured Convertible Notes                    
Debt Disclosure [Line Items]                    
Debt conversion, converted instrument, amount   $ 50.0                
Convertible notes   $ 10.0                
Debt instrument, interest rate   8.00%                
Promissory Note                    
Debt Disclosure [Line Items]                    
Debt instrument, interest rate         3.50%          
Prepayment from stockholder               $ 5.0    
Debt instrument, increase, accrued interest         $ 0.2          
Number of installments (in installments) | installment         3          
Long-term debt, maturity, December 20, 2024                 $ 2.2  
Long-term debt, maturity, December 19, 2025                 2.1  
Long-term debt, maturity, December 18, 2026                 2.1  
Total debt outstanding                 $ 5.2 5.2
Bridge Notes                    
Debt Disclosure [Line Items]                    
Line of credit facility, maximum borrowing capacity       $ 6.0            
Line of credit facility, interest rate       10.00%            
Conversion percentage of outstanding principal and unpaid accrued interest     70.00% 70.00%            
Percentage of repay purchasers in cash amount during liquidation       200.00%            
Bridge loan                   $ 3.2
Debt conversion, converted instrument, amount     $ 50.0              
SPAC transaction     $ 700.0              
Bridge Notes | Unsecured Convertible Notes                    
Debt Disclosure [Line Items]                    
Conversion percentage of outstanding principal and unpaid accrued interest   80.00%                
Repayment premium as a percentage of principal   1