v3.26.3
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES - Toggle Senior Secured Exchangeable Notes due 2030 and Senior Secured Exchangeable Notes due 2030 (Details) - USD ($)
 3 Months Ended 9 Months Ended
May 11, 2026
Mar. 23, 2026
Jul. 01, 2025
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                
Principal balance       $ 3,782,600,000   $ 3,782,600,000   $ 4,024,200,000
Discount       (5,300,000)   (5,300,000)   (68,500,000)
Debt issuance costs       (70,300,000)   (70,300,000)   (64,400,000)
Accrued paid-in-kind interest       18,700,000   18,700,000   2,700,000
Discount, (Increase) Decrease to Net Earnings (Loss)           5,200,000 $ 11,400,000  
Debt issuance costs, (Increase) Decrease to Net Earnings (Loss)           15,400,000 7,300,000  
Bifurcated embedded derivative, increase (decrease) to Net Earnings (Loss)           (2,000,000) (52,100,000)  
Interest expense       110,300,000 $ 119,000,000 346,100,000 337,600,000  
Loss on extinguishment of debt         196,000,000 63,700,000 196,000,000  
6.00%/8.00% Cash/PIK Toggle Senior Secured Exchangeable Notes due 2030                
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                
Principal balance     $ 337,400,000 116,100,000   116,100,000   111,600,000
Discount       (24,300,000)   (24,300,000)   (26,400,000)
Debt issuance costs     (17,100,000) (4,800,000)   (4,800,000)   (5,200,000)
Accrued paid-in-kind interest       2,700,000   2,700,000   400,000
Bifurcated embedded derivative     88,300,000 21,700,000   21,700,000   12,600,000
Carrying value     322,400,000 111,400,000   111,400,000   93,000,000
Principal balance, (Increase) Decrease to Net Earnings (Loss)           4,500,000    
Discount, (Increase) Decrease to Net Earnings (Loss)           2,100,000    
Debt issuance costs, (Increase) Decrease to Net Earnings (Loss)           400,000    
Accrued paid-in-kind interest, (Increase) Decrease to Net Earnings (Loss)           2,300,000    
Bifurcated embedded derivative, increase (decrease) to Net Earnings (Loss)       $ 6,400,000 (1,400,000) 9,100,000 (42,600,000)  
Carrying value, (Increase) Decrease to Net Earnings (Loss)           $ 18,400,000    
Effective interest rate       15.12%   15.12%    
Loss on extinguishment of debt     103,300,000   103,300,000   103,300,000  
Senior Secured Exchangeable Notes due 2030                
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                
Principal balance               155,800,000
Discount               (57,400,000)
Debt issuance costs               (14,800,000)
Bifurcated embedded derivative     $ 41,700,000         131,900,000
Carrying value               $ 215,500,000
Discount, (Increase) Decrease to Net Earnings (Loss)           $ 3,400,000    
Debt issuance costs, (Increase) Decrease to Net Earnings (Loss)           800,000    
Bifurcated embedded derivative, increase (decrease) to Net Earnings (Loss)         $ (9,500,000) (11,100,000) $ (9,500,000)  
Carrying value, (Increase) Decrease to Net Earnings (Loss)           (6,900,000)    
Debt issuance costs, Deferred Charges Activity           1,600,000    
Bifurcated embedded derivative, Deferred Charges Activity           (1,600,000)    
Carrying value, Deferred Charges Activity           0    
Bifurcated embedded derivative, Consent Fee Paid With Common Stock           (15,700,000)    
Carrying value, Consent Fee Paid With Common Stock           (15,700,000)    
Principal balance, Notes Exchanged For Common Stock           (155,800,000)    
Discount, Notes exchanged for common stock           54,000,000    
Debt issuance costs, Notes Exchanged For Common Stock           12,400,000    
Bifurcated embedded derivative, Notes exchanged for common stock           (103,500,000)    
Carrying value           $ (192,900,000)    
Effective interest rate       16.54%   16.54%    
Consent fees paid in shares (in shares)   15,378,194            
Aggregate principal to be exchanged per notice $ 155,845,562              
Debt for equity exchange (shares) 142,102,295              
Interest expense $ 900,000              
Loss on extinguishment of debt $ 33,000,000         $ 33,000,000