v3.25.0.1
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES - Debt for equity exchange (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Jul. 31, 2020
Jun. 05, 2015
STOCKHOLDERS' EQUITY          
Reacquisition Cost $ 3.9        
(Gain) loss on extinguishment of debt (38.9) $ (142.8) $ 92.8    
Total debt repurchases and exchanges          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 382.9 325.0      
Reacquisition Cost $ 318.1 $ 233.3      
Shares of Common Stock Exchanged 47,654,455 14,186,651      
(Gain) loss on extinguishment of debt $ (100.1) $ (142.8)      
Accrued Interest Paid/Exchanged 12.1        
Equity Debt Repurchase          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 260.8        
Reacquisition Cost $ 197.0        
Shares of Common Stock Exchanged 44,080,132        
(Gain) loss on extinguishment of debt $ (89.9)        
Accrued Interest Paid/Exchanged 9.1        
Cash debt repurchase          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 58.9   123.6    
Reacquisition Cost 59.1   69.9    
(Gain) loss on extinguishment of debt (4.7)   (78.7)    
Accrued Interest Paid/Exchanged 1.5        
Cash and debt for equity exchanges          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 63.2        
Reacquisition Cost $ 62.0        
Shares of Common Stock Exchanged 3,574,323        
(Gain) loss on extinguishment of debt $ (5.5)        
Accrued Interest Paid/Exchanged 1.5        
Second Lien Notes | Equity Debt Repurchase          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 224.1 105.3      
Reacquisition Cost $ 157.2 $ 91.7      
Shares of Common Stock Exchanged 35,062,835 14,186,651      
(Gain) loss on extinguishment of debt $ (93.1) $ (28.3)      
Accrued Interest Paid/Exchanged 8.3        
Second Lien Notes | Cash debt repurchase          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 50.0   118.3    
Reacquisition Cost 50.5   68.3    
(Gain) loss on extinguishment of debt (4.4)   $ (75.0)    
Accrued Interest Paid/Exchanged 1.4        
Second Lien Notes | Cash and debt for equity exchanges          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased 45.0        
Reacquisition Cost $ 45.5        
Shares of Common Stock Exchanged 2,693,717        
(Gain) loss on extinguishment of debt $ (4.0)        
Accrued Interest Paid/Exchanged $ 1.2        
5.75% Senior Subordinated Notes due 2025          
STOCKHOLDERS' EQUITY          
Stated interest rate (as a percent) 5.75% 5.75%   5.75% 5.75%
5.75% Senior Subordinated Notes due 2025 | Equity Debt Repurchase          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased $ 36.7        
Reacquisition Cost $ 39.8        
Shares of Common Stock Exchanged 9,017,297        
(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 debt repurchase          
STOCKHOLDERS' EQUITY          
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 | Cash and debt for equity exchanges          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased $ 8.6        
Reacquisition Cost $ 8.4        
Shares of Common Stock Exchanged 447,829        
(Gain) loss on extinguishment of debt $ (0.2)        
Accrued Interest Paid/Exchanged $ 0.1        
Stated interest rate (as a percent) 5.75%        
5.875% Senior Subordinated Notes due 2026 | Cash debt repurchase          
STOCKHOLDERS' EQUITY          
Stated interest rate (as a percent)   5.875%      
5.875% Senior Subordinated Notes due 2026 | Cash and debt for equity exchanges          
STOCKHOLDERS' EQUITY          
Aggregate Principal Repurchased $ 9.6        
Reacquisition Cost $ 8.1        
Shares of Common Stock Exchanged 432,777        
(Gain) loss on extinguishment of debt $ (1.3)        
Accrued Interest Paid/Exchanged $ 0.2        
Stated interest rate (as a percent) 5.875%