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v3.25.0.1

Consolidated Statement of Stockholders' Equity - 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, 2022 |  |  |  |  | 50,000 | 16,184,264 |  |  |  |  |
Beginning balance at Dec. 31, 2022 | $ 206.0 |  |  |  |  |  | $ 585.9 |  | $ (375.6) |  | $ (4.3)
Beginning balance (in shares) at Dec. 31, 2022 |  |  |  |  |  |  |  |  |  |  | 123,089
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Rights offering, net of costs (in shares) |  |  |  |  |  | 18,181,818 |  |  |  |  |
Rights offering, net of costs | 98.4 |  |  |  |  |  | 98.4 |  |  |  |
Stock-based compensation (in shares) |  |  |  |  |  | 705,873 |  |  |  |  |
Stock-based compensation | 12.0 |  |  |  |  |  | 12.0 |  |  |  |
Tax withholding for vesting of restricted stock units and other | (1.4) |  |  |  |  |  | (1.4) |  |  |  |
Issuance of warrant | 6.1 |  |  |  |  |  | 6.1 |  |  |  |
Net loss | (215.5) |  |  |  |  |  |  |  | (215.5) |  |
Ending balance (in shares) at Dec. 31, 2023 |  |  | 50,000 | 35,071,955 | 50,000 | 35,071,955 |  |  |  |  |
Ending balance at Dec. 31, 2023 | $ 105.6 | $ (3.7) |  |  |  |  | 701.0 | $ (13.5) | (591.1) | $ 9.8 | $ (4.3)
Ending balance (in shares) at Dec. 31, 2023 | 123,089 |  |  |  |  |  |  |  |  |  | 123,089
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accounting standards update extensible enumeration | Accounting Standards Update 2020-06 [Member] |  |  |  |  |  |  |  |  |  |
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

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