v3.26.1
Unrestricted Subsidiaries - Schedule of Income Statement Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule of Equity Method Investments        
Sales $ 1,445.1 $ 1,026.6 $ 2,474.9 $ 2,020.5
Cost of sales 1,426.8 1,070.2 2,544.0 2,145.5
Gross profit (loss) 18.3 (43.6) (69.1) (125.0)
Operating costs and expenses:        
Selling 13.5 12.2 25.8 24.5
General and administrative 39.4 41.1 105.4 53.2
Gain on sale of business 0.0 0.0 0.0 (62.2)
Other operating expense 5.4 4.1 11.0 9.2
Operating loss (40.0) (101.0) (211.3) (149.7)
Other income (expense):        
Interest expense (52.0) (52.9) (103.1) (111.4)
Debt extinguishment costs 0.0 (0.1) (1.7) (47.7)
Gain (loss) on derivative instruments (26.0) 4.3 (141.4) (2.9)
Other income (expense) 0.9 2.0 2.5 2.4
Total other income (expense) (77.1) (46.7) (243.7) (159.6)
Net loss before income taxes (117.1) (147.7) (455.0) (309.3)
Income tax (benefit) expense (21.2) 0.2 (42.1) 0.6
Net loss (95.9) (147.9) (412.9) (309.9)
Restricted        
Schedule of Equity Method Investments        
Sales 1,245.6 817.7 2,124.3 1,646.0
Cost of sales 1,217.1 835.9 2,167.2 1,719.1
Gross profit (loss) 28.5 (18.2) (42.9) (73.1)
Operating costs and expenses:        
Selling 13.5 12.2 25.8 24.5
General and administrative 32.2 32.3 92.1 34.7
Gain on sale of business 0.0 0.0 0.0 (62.2)
Other operating expense 3.6 3.7 7.4 7.3
Operating loss (20.8) (66.4) (168.2) (77.4)
Other income (expense):        
Interest expense (33.5) (34.8) (66.6) (68.5)
Debt extinguishment costs 0.0 (0.1) (1.7) (0.1)
Gain (loss) on derivative instruments (26.0) 4.3 (141.4) 2.7
Other income (expense) (0.1) 0.1 0.3 (0.3)
Total other income (expense) (59.6) (30.5) (209.4) (66.2)
Net loss before income taxes (80.4) (96.9) (377.6) (143.6)
Income tax (benefit) expense 0.2 0.2 2.4 0.6
Net loss (80.6) (97.1) (380.0) (144.2)
Unrestricted        
Schedule of Equity Method Investments        
Sales 199.5 208.9 350.6 374.5
Cost of sales 209.7 234.3 376.8 426.4
Gross profit (loss) (10.2) (25.4) (26.2) (51.9)
Operating costs and expenses:        
Selling 0.0 0.0 0.0 0.0
General and administrative 7.2 8.8 13.3 18.5
Gain on sale of business 0.0 0.0 0.0 0.0
Other operating expense 1.8 0.4 3.6 1.9
Operating loss (19.2) (34.6) (43.1) (72.3)
Other income (expense):        
Interest expense (18.5) (18.1) (36.5) (42.9)
Debt extinguishment costs 0.0 0.0 0.0 (47.6)
Gain (loss) on derivative instruments 0.0 0.0 0.0 (5.6)
Other income (expense) 1.0 1.9 2.2 2.7
Total other income (expense) (17.5) (16.2) (34.3) (93.4)
Net loss before income taxes (36.7) (50.8) (77.4) (165.7)
Income tax (benefit) expense (21.4) 0.0 (44.5) 0.0
Net loss $ (15.3) $ (50.8) $ (32.9) $ (165.7)