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Fair Value of Measurements - Schedule of Changes in the Fair Value of the Company's Level 3 Financial Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024
Fair Value of Measurements |  |  |
Change in fair value, [Extensible List] | Other income (expenses), net | Other income (expenses), net | Other income (expenses), net
Convertible Promissory Notes |  |  |
Fair Value of Measurements |  |  |
Fair value as of beginning of period | $ 9,673 | $ 10,317 | $ 34,033
Conversion |  |  | (41,209)
Borrowing |  |  | 16,290
Repayment | (1,000) | (630) |
Change in fair value | 165 | (14) | 1,203
Fair value as of end of period | 8,838 | 9,673 | 10,317
Warrant Liabilities |  |  |
Fair Value of Measurements |  |  |
Fair value as of beginning of period | 3,956 | 10,584 |
Fair value of warrants assumed at closing |  |  | 5,958
Change in fair value | (759) | (6,628) | 4,626
Fair value as of end of period | 3,197 | 3,956 | $ 10,584
Common Stock Forward Liability |  |  |
Fair Value of Measurements |  |  |
Fair value as of beginning of period | 535 |  |
Conversion | (84) | (51) |
Change in fair value |  | 586 |
Fair value as of end of period | $ 451 | $ 535 |

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