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Financial Instruments and Fair Value Measurements - Schedule of Assumptions used in Fair Value of Warrant Liabilities (Details) | Sep. 30, 2025 | Dec. 31, 2024 $ / shares
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Series C Preferred Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding, Fair value |  | $ 19.11
Warrants and rights outstanding,term |  | 4 months 17 days
Class B Common Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding, Fair value |  | $ 13.08
Warrants and rights outstanding,term |  | 8 years 8 months 12 days
Strike Price | Series C Preferred Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0.02
Strike Price | Class B Common Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0.02
Risk-Free Interest Rate | Series C Preferred Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0.0439
Risk-Free Interest Rate | Class B Common Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0.0453
Expected Volatility | Series C Preferred Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0.65
Expected Volatility | Class B Common Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0.7577
Expected Dividend Yield |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input | 0 |
Expected Dividend Yield | Series C Preferred Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0
Expected Dividend Yield | Class B Common Stock |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Warrants and rights outstanding measurement input |  | 0

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