v3.25.4
Consolidated Statement of Stockholders' Equity (Deficit) - USD ($)
$ in Millions
Total
Cumulative Effect, Period of Adoption, Adjustment
Class A
Class B
Common Shares
Class A
Common Shares
Class B
Additional Paid in Capital
Additional Paid in Capital
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Class B Common Treasury Shares
Beginning balance (in shares) at Dec. 31, 2023         50,000 35,071,955          
Beginning balance at Dec. 31, 2023 $ 105.6 $ (3.7)         $ 701.0 $ (13.5) $ (591.1) $ 9.8 $ (4.3)
Beginning balance (in shares) at Dec. 31, 2023                     123,089
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Rights offering, net of costs (in shares)           2,392,344          
Rights offering, net of costs 9.1           9.1        
Stock-based compensation (in shares)           253,543          
Stock-based compensation 4.6           4.6        
Other (0.3)           (0.3)        
Net loss (78.6)               (78.6)    
Ending balance (in shares) at Dec. 31, 2024     50,000 37,717,842 50,000 37,717,842          
Ending balance at Dec. 31, 2024 $ 36.7           700.9   (659.9)   $ (4.3)
Ending balance (in shares) at Dec. 31, 2024 123,089                   123,089
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Rights offering, net of costs             9.1        
Stock-based compensation (in shares)           484,664          
Stock-based compensation $ 2.1           2.1        
Exchange of warrants 1.1           1.1        
Net loss (52.4)               (52.4)    
Ending balance (in shares) at Dec. 31, 2025     50,000 38,202,506 50,000 38,202,506          
Ending balance at Dec. 31, 2025 $ (12.5)           $ 704.1   $ (712.3)   $ (4.3)
Ending balance (in shares) at Dec. 31, 2025 123,089                   123,089