v3.26.1
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 6 Months Ended 12 Months Ended
May 11, 2026
Mar. 23, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES              
Principal balance     $ 3,914,200,000   $ 3,914,200,000   $ 4,024,200,000
Discount     (4,900,000)   (4,900,000)   (68,500,000)
Debt issuance costs     (75,800,000)   (75,800,000)   (64,400,000)
Accrued paid-in-kind interest     2,800,000   2,800,000   2,700,000
Discount, (Increase) Decrease to Net Earnings (Loss)         5,500,000 $ 8,600,000  
Debt issuance costs, (Increase) Decrease to Net Earnings (Loss)         10,100,000 3,900,000  
Bifurcated embedded derivative, increase (decrease) to Net Earnings (Loss)         (8,400,000) (41,200,000)  
Interest expense     115,900,000 $ 109,600,000 235,800,000 218,600,000  
Loss (gain) on extinguishment of debt         63,100,000    
6.00%/8.00% Cash/PIK Toggle Senior Secured Exchangeable Notes due 2030              
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES              
Principal balance     116,100,000   116,100,000   111,600,000
Discount     (25,100,000)   (25,100,000)   (26,400,000)
Debt issuance costs     (5,000,000)   (5,000,000)   (5,200,000)
Accrued paid-in-kind interest     400,000   400,000   400,000
Bifurcated embedded derivative     15,300,000   15,300,000   12,600,000
Carrying value     101,700,000   101,700,000   $ 93,000,000
Principal balance, (Increase) Decrease to Net Earnings (Loss)         4,500,000    
Discount, (Increase) Decrease to Net Earnings (Loss)         1,300,000    
Debt issuance costs, (Increase) Decrease to Net Earnings (Loss)         200,000    
Bifurcated embedded derivative, increase (decrease) to Net Earnings (Loss)     $ 9,800,000 $ 3,900,000 2,700,000 $ (41,200,000)  
Carrying value, (Increase) Decrease to Net Earnings (Loss)         $ 8,700,000    
Interest rate cash (as a percent)     6.00% 6.00% 6.00% 6.00% 6.00%
PIK interest rate (as a percent)     8.00% 8.00% 8.00% 8.00% 8.00%
Effective interest rate     15.12%   15.12%    
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             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)     $ 41,300,000   (11,100,000)    
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)    
Interest rate cash (as a percent)             1.50%
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 (gain) on extinguishment of debt $ 33,000,000   $ 33,000,000   $ 33,000,000