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Fair Value Measurements and Financial Instruments - Narrative (Details)
$ in Millions
6 Months Ended
Jun. 30, 2024
USD ($)
Dec. 31, 2023
Jun. 30, 2024
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Time to expiry (in years) 2 years 6 months 25 days 3 years 25 days  
Volatility (in percent) 80.50% 64.00%  
Risk free rate of return (in percent) 4.60% 4.00%  
Secured Convertible Notes | Convertible Debt      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Notes debt $ 6.4   $ 6.4
Secured Convertible Notes | Convertible Debt | Measurement Input, Credit Spread | Minimum      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Convertible debt, measurement input 0.2567   0.2567
Secured Convertible Notes | Convertible Debt | Measurement Input, Credit Spread | Maximum      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Convertible debt, measurement input 0.3817   0.3817
Secured Convertible Notes | Convertible Debt | Measurement Input, Price Volatility      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Convertible debt, measurement input 0.60   0.60
Secured Convertible Notes | Convertible Debt | Measurement Input, Risk Free Interest Rate      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Convertible debt, measurement input 0.045   0.045
PIPE Warrant      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Time to expiry (in years)     2 years 7 months 6 days
Volatility (in percent)     80.50%
Risk free rate of return (in percent)     4.60%
Sponsor Earnout      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Time to expiry (in years)     2 years 7 months 6 days
Volatility (in percent)     80.50%
Risk free rate of return (in percent)     4.60%
Liberty Warrants and Liberty Advisory Fee Warrant      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Time to expiry (in years)     2 years 7 months 6 days
Volatility (in percent)     80.20%
Risk free rate of return (in percent)     4.60%