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Financing Arrangements - Narrative (Details) - USD ($)
1 Months Ended
Apr. 30, 2017
Dec. 31, 2022
Dec. 30, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2018
Oct. 21, 2015
Aug. 13, 2015
Line of Credit Facility [Line Items]                
Proceeds from financing arrangement related to disposal group, cash     $ 20,000,000          
Proceeds from financing arrangement related to disposal group, promissory note   $ 25,000,000.0 25,000,000 $ 0        
Financing arrangement liability   45,000,000.0 45,000,000 0        
Break-up fee     $ 800,000          
Percentage ownership 100.00%              
Finance lease agreement, amount               $ 50,000,000
Finance lease obligations to acquire machinery and equipment   5,100,000            
Additional finance leases amount   13,400,000            
Foreign subsidiaries borrowings amount   10,900,000   9,800,000        
Foreign subsidiaries bank guarantee amount   $ 41,000,000   $ 39,700,000        
Weighted average interest rate   5.10%   4.80% 5.00%      
Arkansas Development Finance Authority | Southwest Steel Processing LLC                
Line of Credit Facility [Line Items]                
Line of credit facility, maximum borrowing capacity             $ 11,000,000  
Credit facility outstanding   $ 4,300,000            
Senior Notes due 2027 | Senior Notes                
Line of Credit Facility [Line Items]                
Aggregate principal amount $ 350,000,000              
Debt instrument, interest rate, stated percentage 6.625% 6.625%            
Revolving credit facility                
Line of Credit Facility [Line Items]                
Debt instrument, interest rate, stated percentage   5.40%            
Revolving credit facility | Seventh Amendment Credit Agreement                
Line of Credit Facility [Line Items]                
Line of credit facility, maximum borrowing capacity   $ 405,000,000            
Accordion feature, increase limit           $ 70,000,000    
Line of credit facility, remaining borrowing capacity   102,300,000            
Revolving credit facility, Canadian sub-limit | Seventh Amendment Credit Agreement                
Line of Credit Facility [Line Items]                
Line of credit facility, maximum borrowing capacity   40,000,000            
Revolving credit facility, European sub-limit | Seventh Amendment Credit Agreement                
Line of Credit Facility [Line Items]                
Line of credit facility, maximum borrowing capacity   $ 30,000,000