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Commitments and Contingencies - Narrative (Details)
$ in Millions
12 Months Ended
Jul. 18, 2024
USD ($)
parties
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Loss Contingencies [Line Items]        
Principal contractual obligations including agreements to purchase an estimated amount of goods, including raw materials, or services   $ 108.5    
Asset retirement obligation liabilities   11.2 $ 11.7  
Property and equipment, net   1,397.9 1,416.4  
Accumulated depreciation   2,677.5 2,647.4  
Accretion expense   0.4 0.4 $ 0.5
Buildings        
Loss Contingencies [Line Items]        
Property and equipment, net   2.3 2.4  
Accumulated depreciation   1.6 1.5  
Leasehold Improvements        
Loss Contingencies [Line Items]        
Property and equipment, net   6.9 6.7  
Accumulated depreciation   $ 4.8 $ 4.7  
Pending Litigation | Breach of Contract        
Loss Contingencies [Line Items]        
Number of parties | parties 2      
Purchase obligation $ 25.0