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Investments - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended
Oct. 21, 2024
Oct. 31, 2024
Sep. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Variable Interest Entity            
Guarantor liability     $ 34.7   $ 36.9  
Inventories, net     833.3   802.3  
Property, plant and equipment, net     4,497.0   4,444.5  
Subsequent event            
Variable Interest Entity            
Cash paid $ 89.0          
Cobra U.K.            
Variable Interest Entity            
Interest acquired       49.90%    
Cobra U.K. | Subsequent event            
Variable Interest Entity            
Interest acquired 49.90% 49.90%        
ZOA Energy LLC            
Variable Interest Entity            
Ownership interest           40.00%
ZOA Energy LLC | Subsequent event            
Variable Interest Entity            
Cash paid   $ 53.0        
Ownership interest   51.00%        
RMMC/RMBC            
Variable Interest Entity            
Inventories, net     72.5   108.2  
Property, plant and equipment, net     105.0   120.7  
BRI & BDL            
Variable Interest Entity            
Guarantor liability     $ 32.0   $ 35.4