v3.25.4
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES - Debt repurchases and exchanges (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Reacquisition Cost $ 2.4 $ 3.9  
(Gain)/Loss on extinguishment of debt 196.0 (38.9) $ (142.8)
Carrying value of the debt extinguished   418.2 376.1
Total debt repurchases and exchanges      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 382.9 $ 325.0
Shares of Common Stock Exchanged   47,654,455 14,186,651
Reacquisition Cost   $ 318.1 $ 233.3
(Gain)/Loss on extinguishment of debt   (100.1) 142.8
Accrued Interest Paid/Exchanged   12.1 6.9
Cash debt repurchase      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   58.9 219.7
Reacquisition Cost   59.1 141.6
(Gain)/Loss on extinguishment of debt   (4.7) 114.5
Accrued Interest Paid/Exchanged   1.5 5.7
Cash debt repurchase | Related party      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased     80.0
Reacquisition Cost     50.2
(Gain)/Loss on extinguishment of debt     43.2
Accrued Interest Paid/Exchanged     1.2
Cash debt repurchase | Non-related party      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased     139.7
Reacquisition Cost     91.4
(Gain)/Loss on extinguishment of debt     71.3
Accrued Interest Paid/Exchanged     4.5
Equity Debt Repurchase      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 260.8  
Shares of Common Stock Exchanged   44,080,132  
Reacquisition Cost   $ 197.0  
(Gain)/Loss on extinguishment of debt   (89.9)  
Accrued Interest Paid/Exchanged   9.1  
Cash and debt for equity exchanges      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 63.2  
Shares of Common Stock Exchanged   3,574,323  
Reacquisition Cost   $ 62.0  
(Gain)/Loss on extinguishment of debt   (5.5)  
Accrued Interest Paid/Exchanged   1.5  
5.75% Senior Subordinated Notes due 2025      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Carrying value of the debt extinguished 1.3    
5.75% Senior Subordinated Notes due 2025 | Cash debt repurchase      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   8.9  
Reacquisition Cost   8.6  
(Gain)/Loss on extinguishment of debt   (0.3)  
Accrued Interest Paid/Exchanged   $ 0.1  
Stated interest rate (as a percent)   5.75%  
5.75% Senior Subordinated Notes due 2025 | Equity Debt Repurchase      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 36.7  
Shares of Common Stock Exchanged   9,017,297  
Reacquisition Cost   $ 39.8  
(Gain)/Loss on extinguishment of debt   3.2  
Accrued Interest Paid/Exchanged   $ 0.8  
Stated interest rate (as a percent)   5.75%  
5.75% Senior Subordinated Notes due 2025 | Cash and debt for equity exchanges      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 8.6  
Shares of Common Stock Exchanged   447,829  
Reacquisition Cost   $ 8.4  
(Gain)/Loss on extinguishment of debt   (0.2)  
Accrued Interest Paid/Exchanged   $ 0.1  
Stated interest rate (as a percent)   5.75%  
Second Lien Notes due 2026      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
(Gain)/Loss on extinguishment of debt (6.6) $ (40.3) (140.5)
Second Lien Notes due 2026 | Cash debt repurchase      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   50.0  
Reacquisition Cost   50.5  
(Gain)/Loss on extinguishment of debt   (4.4)  
Accrued Interest Paid/Exchanged   1.4  
Second Lien Notes due 2026 | Cash debt repurchase | Related party      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased     75.9
Reacquisition Cost     48.5
(Gain)/Loss on extinguishment of debt     40.9
Accrued Interest Paid/Exchanged     1.1
Second Lien Notes due 2026 | Cash debt repurchase | Non-related party      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased     139.7
Reacquisition Cost     91.4
(Gain)/Loss on extinguishment of debt     71.3
Accrued Interest Paid/Exchanged     4.5
Second Lien Notes due 2026 | Equity Debt Repurchase      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 224.1 $ 105.3
Shares of Common Stock Exchanged   35,062,835 14,186,651
Reacquisition Cost   $ 157.2 $ 91.7
(Gain)/Loss on extinguishment of debt   (93.1) 28.3
Accrued Interest Paid/Exchanged   8.3 1.2
Second Lien Notes due 2026 | Cash and debt for equity exchanges      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 45.0  
Shares of Common Stock Exchanged   2,693,717  
Reacquisition Cost   $ 45.5  
(Gain)/Loss on extinguishment of debt   (4.0)  
Accrued Interest Paid/Exchanged   1.2  
5.875% Senior Subordinated Notes due 2026 | Cash debt repurchase | Related party      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased     4.1
Reacquisition Cost     1.7
(Gain)/Loss on extinguishment of debt     2.3
Accrued Interest Paid/Exchanged     $ 0.1
Stated interest rate (as a percent)     5.875%
5.875% Senior Subordinated Notes due 2026 | Cash and debt for equity exchanges      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased   $ 9.6  
Shares of Common Stock Exchanged   432,777  
Reacquisition Cost   $ 8.1  
(Gain)/Loss on extinguishment of debt   (1.3)  
Accrued Interest Paid/Exchanged   $ 0.2  
Stated interest rate (as a percent)   5.875%  
5.75% Senior Subordinated Notes due 2025      
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES      
Aggregate Principal Repurchased 1.3    
Reacquisition Cost 1.3    
(Gain)/Loss on extinguishment of debt $ 0.0    
Stated interest rate (as a percent) 5.75%