v3.26.3
STOCKHOLDERS' DEFICIT - Equity statements (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended
Feb. 19, 2026
Jun. 30, 2026
May 31, 2026
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Increase (Decrease) in Stockholders' Equity                      
Balance at the beginning of the period       $ (1,452.7) $ (1,926.5) $ (1,894.8) $ (1,725.4) $ (1,737.8) $ (1,760.5) $ (1,894.8) $ (1,760.5)
Net earnings (loss)       109.3 (11.4) (117.1) (298.2) (4.7) (202.1) (19.2) (505.0)
Other comprehensive income (loss)       (19.7) (16.0) (15.5) 15.1 11.1 52.7    
Debt for equity exchange         226.8   225.0        
Taxes paid for restricted unit withholdings           (3.7)     (4.4)    
Consent fees paid in shares           34.5          
Share issuances           62.8     170.8    
Share issuance costs       (0.7)              
Stock-based compensation       20.7 3.3 7.3 6.0 6.0 5.7    
Balance at the end of the period   $ (1,452.7)   (1,343.1) (1,452.7) (1,926.5) (1,777.5) (1,725.4) (1,737.8) (1,343.1) (1,777.5)
Additional Paid-in Capital                      
Increase (Decrease) in Stockholders' Equity                      
Balance at the beginning of the period       7,719.8 7,221.4 7,121.5 6,892.1 6,886.1 6,714.2 7,121.5 6,714.2
Debt for equity exchange         225.4   224.2        
Taxes paid for restricted unit withholdings           (3.7)     (4.4)    
Consent fees paid in shares           34.2          
Share issuances           62.2     170.6    
Share issuance costs       (0.7)              
Stock-based compensation       20.7 3.3 7.2 6.0 6.0 5.7    
Balance at the end of the period   7,719.8   7,739.8 7,719.8 7,221.4 7,122.3 6,892.1 6,886.1 7,739.8 7,122.3
Accumulated Other Comprehensive Loss                      
Increase (Decrease) in Stockholders' Equity                      
Balance at the beginning of the period       (73.7) (57.7) (42.2) (68.2) (79.3) (132.0) (42.2) (132.0)
Other comprehensive income (loss)       (19.7) (16.0) (15.5) 15.1 11.1 52.7    
Balance at the end of the period   (73.7)   (93.4) (73.7) (57.7) (53.1) (68.2) (79.3) (93.4) (53.1)
Accumulated Deficit                      
Increase (Decrease) in Stockholders' Equity                      
Balance at the beginning of the period       (9,107.7) (9,096.3) (8,979.2) (8,553.6) (8,548.9) (8,346.8) (8,979.2) (8,346.8)
Net earnings (loss)       109.3 (11.4) (117.1) (298.2) (4.7) (202.1)    
Balance at the end of the period   (9,107.7)   (8,998.4) (9,107.7) (9,096.3) (8,851.8) (8,553.6) (8,548.9) (8,998.4) (8,851.8)
Class A common stock | Common Stock                      
Increase (Decrease) in Stockholders' Equity                      
Balance at the beginning of the period       $ 8.9 $ 6.1 $ 5.1 $ 4.3 $ 4.3 $ 4.1 $ 5.1 $ 4.1
Balance (in shares)       892,604,638 605,223,095 512,943,561 433,143,561 433,143,561 414,417,797 512,943,561 414,417,797
Debt for equity exchange         $ 1.4   $ 0.8        
Debt for equity exchange (shares)         142,102,295   79,800,000        
Consent fees paid in shares           $ 0.3          
Consent fees paid in shares (in shares)           33,117,743          
Share issuances           $ 0.6     $ 0.2    
Share issuance (in shares)           55,224,032     17,052,756    
Stock-based compensation           $ 0.1          
Stock-based compensation (in shares)           3,937,759     1,673,008    
Balance at the end of the period   $ 8.9   $ 8.9 $ 8.9 $ 6.1 $ 5.1 $ 4.3 $ 4.3 $ 8.9 $ 5.1
Balance (in shares)   892,604,638   892,604,638 892,604,638 605,223,095 512,943,561 433,143,561 433,143,561 892,604,638 512,943,561
Common Stock                      
Increase (Decrease) in Stockholders' Equity                      
Debt for equity exchange (shares)     142,102,295                
Board of Director | Class A common stock                      
Increase (Decrease) in Stockholders' Equity                      
Shares awarded 869,571         869,571     370,586    
RSU and PSU Units | Class A common stock                      
Increase (Decrease) in Stockholders' Equity                      
Shares Vested           3,068,188     1,302,422    
At-the-Market Offerings                      
Increase (Decrease) in Stockholders' Equity                      
Share issuances         $ 82.3            
At-the-Market Offerings | Additional Paid-in Capital                      
Increase (Decrease) in Stockholders' Equity                      
Share issuances         81.8            
At-the-Market Offerings | Class A common stock | Common Stock                      
Increase (Decrease) in Stockholders' Equity                      
Share issuances         $ 0.5            
Share issuance (in shares)         50,029,248            
At-the-Market Offerings | Common Stock                      
Increase (Decrease) in Stockholders' Equity                      
Share issuance (in shares)                   105,300,000 17,100,000
Registered direct offering                      
Increase (Decrease) in Stockholders' Equity                      
Share issuances         $ 188.8            
Share issuance (in shares)   95,250,000               95,300,000  
Registered direct offering | Additional Paid-in Capital                      
Increase (Decrease) in Stockholders' Equity                      
Share issuances         187.9            
Registered direct offering | Class A common stock | Common Stock                      
Increase (Decrease) in Stockholders' Equity                      
Share issuances         $ 0.9            
Share issuance (in shares)         95,250,000