v3.25.0.1
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES - Debt repurchase transactions (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]      
Reacquisition Cost $ 3.9    
(Gain) on Extinguishment (38.9) $ (142.8) $ 92.8
Total debt repurchases and exchanges      
Debt Instrument [Line Items]      
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) on Extinguishment (100.1) (142.8)  
Accrued Interest Paid/Exchanged   6.9  
Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased 58.9   123.6
Reacquisition Cost 59.1   69.9
(Gain) on Extinguishment (4.7)   (78.7)
Accrued Interest Paid/Exchanged     4.5
Equity Debt Repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased $ 260.8    
Shares of Common Stock Exchanged 44,080,132    
Reacquisition Cost $ 197.0    
(Gain) on Extinguishment (89.9)    
Related and Non-Related parties | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased   219.7  
Reacquisition Cost   141.6  
(Gain) on Extinguishment   (114.5)  
Accrued Interest Paid/Exchanged   5.7  
Related Party | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased   80.0  
Reacquisition Cost   50.2  
(Gain) on Extinguishment   (43.2)  
Accrued Interest Paid/Exchanged   1.2  
Nonrelated Party | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased   139.7  
Reacquisition Cost   91.4  
(Gain) on Extinguishment   (71.3)  
Accrued Interest Paid/Exchanged   4.5  
Second Lien Notes | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased 50.0   118.3
Reacquisition Cost 50.5   68.3
(Gain) on Extinguishment (4.4)   (75.0)
Accrued Interest Paid/Exchanged     4.5
Second Lien Notes | Equity Debt Repurchase      
Debt Instrument [Line Items]      
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) on Extinguishment $ (93.1) (28.3)  
Accrued Interest Paid/Exchanged   1.2  
Second Lien Notes | Related Party | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased   75.9  
Reacquisition Cost   48.5  
(Gain) on Extinguishment   (40.9)  
Accrued Interest Paid/Exchanged   1.1  
Second Lien Notes | Nonrelated Party | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased   139.7  
Reacquisition Cost   91.4  
(Gain) on Extinguishment   (71.3)  
Accrued Interest Paid/Exchanged   $ 4.5  
5.875% Senior Subordinated Notes due 2026 | Cash debt repurchase      
Debt Instrument [Line Items]      
Stated interest rate (as a percent)   5.875%  
5.875% Senior Subordinated Notes due 2026 | Related Party | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased   $ 4.1  
Reacquisition Cost   1.7  
(Gain) on Extinguishment   (2.3)  
Accrued Interest Paid/Exchanged   $ 0.1  
6.125% Senior Subordinated Notes due 2027. | Cash debt repurchase      
Debt Instrument [Line Items]      
Aggregate Principal Repurchased     5.3
Reacquisition Cost     1.6
(Gain) on Extinguishment     $ (3.7)
Stated interest rate (as a percent)     6.125%