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Description of the Business and Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]      
Intangible Assets, Gross (Excluding Goodwill) $ 592,762 $ 593,362  
Less accumulated amortization 365,528 335,603  
Intangible Assets, Net (Excluding Goodwill), Total 227,234 257,759  
Amortization of intangible assets 30,526 34,048 $ 27,837
Estimated amortization expense      
2025 27,464    
2026 25,562    
2027 23,163    
2028 21,953    
2029 19,583    
Thereafter 109,509    
Total $ 227,234    
Weighted average      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 22 years    
Customer and scrap generator relationships      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross $ 444,812 444,812  
Customer and scrap generator relationships | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 8 years    
Customer and scrap generator relationships | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 25 years    
Customer and scrap generator relationships | Weighted average      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 22 years    
Trade names      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross $ 147,950 147,950  
Trade names | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 15 years    
Trade names | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 25 years    
Trade names | Weighted average      
Finite-Lived Intangible Assets [Line Items]      
Useful Life 19 years    
Other Intangible Assets      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross   $ 600