v3.26.1
Segment Reporting (Performance Measures- Footnotes) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenue $ 1,172.0 $ 1,269.1 $ 2,446.6 $ 2,440.3
Central and other        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenue 343.5 387.5 760.3 722.2
Central and other | JV Reportable Segments        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenue 188.6 143.7 335.8 278.3
Central and other | Consolidated reportable segments        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenue 46.9 42.1 92.6 81.1
Central and other | All other category        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenue 343.5 387.5 760.3 722.2
Central and other | Related party        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenue $ 108.0 $ 201.7 $ 331.9 $ 362.8