v3.23.1
Commitments, Contingencies and Guarantees (Details)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Jul. 26, 2021
USD ($)
Jun. 30, 2021
payment
Mar. 11, 2021
USD ($)
May 30, 2019
USD ($)
Jan. 23, 2018
USD ($)
May 31, 2019
USD ($)
Jul. 31, 2017
USD ($)
Mar. 31, 2022
USD ($)
D
Dec. 31, 2021
Dec. 31, 2018
USD ($)
Dec. 31, 2022
USD ($)
Commitments, Contingencies and Guarantees                      
Outstanding balance                     $ 9,000
LGJV                      
Commitments, Contingencies and Guarantees                      
Equity interest in LGJV repurchased     18.50%           18.50%    
Ownership percentage 70.00%   70.00%                
Consideration paid for repurchased equity interest in LGJV     $ 71,550                
LGJV | Term loan                      
Commitments, Contingencies and Guarantees                      
Payments for closing fees $ 10,000                    
LGJV | Dowa MPR Loan                      
Commitments, Contingencies and Guarantees                      
Capital contribution for repayment of debt           $ 18,200          
LGJV | Equipment loan agreements                      
Commitments, Contingencies and Guarantees                      
Outstanding balance               $ 4,059      
Unamortized debt discount               $ 10      
LGJV | Dowa | Term loan                      
Commitments, Contingencies and Guarantees                      
Payments for closing fees                   $ 4,200  
Number of consecutive semi annual equal payments commencing June 30, 2021 | payment   14                  
Arrangement fee, percentage of outstanding principal balance considered (as a percent)               70.00%      
Arrangement fee semi-annual payment, number of business days prior to June 30 and December 31 on which installments come due | D               2      
Percentage of excess cash flow used to determine amount of additional payments               70.00%      
LGJV | Dowa | Term loan | LIBOR                      
Commitments, Contingencies and Guarantees                      
Basis spread over LIBOR (as a percent)             2.35%        
LGJV | Dowa | Dowa MPR Loan                      
Commitments, Contingencies and Guarantees                      
Maximum borrowing capacity for LGD development         $ 65,700            
Capital contribution for repayment of debt           18,200          
Remaining principal and interest converted into equity stake in LGJV           $ 50,737          
Debt instrument percentage of joint venture loan for which company is responsible         70.00%            
LGJV | Dowa | Dowa MPR Loan | LIBOR                      
Commitments, Contingencies and Guarantees                      
Basis spread over LIBOR (as a percent)         1.50%            
LGJV | Dowa | Working capital facility agreement                      
Commitments, Contingencies and Guarantees                      
Maximum borrowing capacity for LGD development       $ 60,000              
Arrangement fee (as a percent)       15.00%              
Arrangement fee, percentage of outstanding principal balance considered (as a percent)               70.00%      
Payments on debt     60,000                
Company's pro-rata capital contribution     42,000                
LGJV | Dowa | Working capital facility agreement | LIBOR                      
Commitments, Contingencies and Guarantees                      
Basis spread over LIBOR (as a percent)       3.00%              
Dowa | LGJV                      
Commitments, Contingencies and Guarantees                      
Ownership percentage 30.00%         48.50%          
Increase in equity interest in LGJV through loan conversion           18.50%          
LGJV                      
Commitments, Contingencies and Guarantees                      
Proven and probable reserves, basis difference     $ 47,400                
LGJV | Dowa | Term loan                      
Commitments, Contingencies and Guarantees                      
Maximum borrowing capacity for LGD development             $ 210,000        
Arrangement fee (as a percent)               2.00%