XML 77 R61.htm IDEA: XBRL DOCUMENT v3.22.4
Debt - Term Loan and Credit Facility (Details)
€ in Millions
1 Months Ended
Nov. 02, 2021
USD ($)
Sep. 30, 2022
USD ($)
Nov. 30, 2021
Dec. 31, 2022
USD ($)
Dec. 09, 2022
USD ($)
Sep. 30, 2022
EUR (€)
Jun. 14, 2022
USD ($)
U.S revolving credit facility              
Line of Credit Facility [Line Items]              
Credit facility face amount             $ 250,000,000.0
Letter of Credit              
Line of Credit Facility [Line Items]              
Credit facility face amount             $ 150,000,000
Casthouse Facility              
Line of Credit Facility [Line Items]              
Credit facility face amount $ 130,000,000            
Debt instrument, term     8 years        
Debt instrument, quarterly installment fee 1.739%            
Debt instrument, remaining payment after drawdown of funds     60.00%        
Medium-term notes, outstanding borrowings       $ 50,000,000.0      
Debt instrument, arrangement fee, percentage of facility 0.78%            
Debt instrument, arrangement fee, paid upfront 50.00%            
Debt instrument, arrangement fee, paid at end of availability 50.00%            
Line of credit facility, unused capacity, commitment fee percentage     0.38%        
Casthouse Facility | Iceland revolving credit facility              
Line of Credit Facility [Line Items]              
Stated interest rate       773.00%      
Grundartangi - Landsvirkjun | Iceland revolving credit facility              
Line of Credit Facility [Line Items]              
Credit facility maximum amount       $ 80,000,000.0      
Iceland Revolving Credit Facility | Iceland revolving credit facility              
Line of Credit Facility [Line Items]              
Outstanding borrowings       35,000,000.0      
Outstanding letters of credit issued       0      
Credit facility maximum amount   $ 100,000,000.0   $ 100,000,000.0      
Stated interest rate       7.41%      
Iceland Term Facility | Iceland revolving credit facility              
Line of Credit Facility [Line Items]              
Stated interest rate       474.00%      
Iceland Term Facility | Iceland revolving credit facility | Grundartangi | Line of Credit              
Line of Credit Facility [Line Items]              
Debt instrument, basis spread on variable rate   3.20%          
Credit facility face amount | €           € 13.6  
Short-term debt   $ 14,500,000       € 13.6  
Iceland Term Facility | Iceland revolving credit facility | EURIBOR              
Line of Credit Facility [Line Items]              
Stated interest rate       3.20%      
Secured Debt | Casthouse Facility              
Line of Credit Facility [Line Items]              
Long-term debt $ 430,000,000            
Secured Debt | Vlissingen Facility Agreement | Vlissingen              
Line of Credit Facility [Line Items]              
Face amount         $ 90,000,000    
Stated interest rate         8.75%