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Fair Value Measurements - Narrative (Details) $ in Thousands | Dec. 31, 2023 USD ($) $ / shares | Sep. 05, 2023 USD ($) $ / shares | Feb. 13, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares
--- | --- | --- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liabilities | $ | $ 14,032 |  | $ 99,700 | $ 0
Warrant liabilities | $ | 11,294 |  |  | $ 0
Fair Value, Recurring |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liabilities | $ | $ 14,032 |  |  |
Series B Warrants | Fair Value, Recurring |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liabilities | $ |  | $ 9,300 |  |
Series A Warrants | Fair Value, Recurring |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liabilities | $ |  | $ 17,400 |  |
Class A Common Stock |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Stock issued during period, conversion of SAFE Agreement (in shares) | shares |  |  | 2,066,667 |
Sale of stock, price per share (in dollars per share) |  |  | $ 10.00 |
Measurement Input, Share Price |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liability, measurement input | 2.56 |  | 10.42 |
Measurement Input, Share Price | Series B Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 2.56 | 4.96 |  |
Measurement Input, Share Price | Series A Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 2.56 | 4.96 |  |
Measurement Input, Dividend Yield |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liability, measurement input | 0.000 |  | 0.000 |
Measurement Input, Dividend Yield | Series B Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 0.000 | 0.000 |  |
Measurement Input, Dividend Yield | Series A Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 0.000 | 0.000 |  |
Measurement Input, Risk Free Interest Rate |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liability, measurement input | 0.0384 |  | 0.0393 |
Measurement Input, Risk Free Interest Rate | Series B Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 0.0469 | 0.0518 |  |
Measurement Input, Risk Free Interest Rate | Series A Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 0.0384 | 0.0437 |  |
Measurement Input, Volatility |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liability, measurement input | 1.05 |  | 1 |
Measurement Input, Volatility | Series B Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 0.92 | 0.76 |  |
Measurement Input, Volatility | Series A Warrants |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Warrant liability, measurement input | 1.05 | 0.90 |  |
Measurement Input, Probability of Contract Being Awarded |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Earn-out liability, measurement input |  |  | 0.60 |
Measurement Input, Probability of Equity Financing |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
SAFE agreement, liability, measurement input |  |  |  | 0
Measurement Input, Probability of Liquidity Event |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
SAFE agreement, liability, measurement input |  |  |  | 0.95
Measurement Input, Probability of Dissolution Event |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
SAFE agreement, liability, measurement input |  |  |  | 0.05
Measurement Input, Discount Rate |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
SAFE agreement, liability, measurement input |  |  |  | 0.164
Measurement Input, Expected Term, Liquidity Event |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
SAFE agreement, liability, measurement input |  |  |  | 0.25
Measurement Input, Expected Term, Dissolution Event |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
SAFE agreement, liability, measurement input |  |  |  | 1

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