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Fair Value Measurements - Summary of Company's Assets and Liabilities Measured Fair Value on Recurring Basis (Details) - Fair Value on Recurring Basis - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | $ 41,339 | $ 44,894
Total liabilities, measured at fair value | 9,507 | 163,340
Earnout Share Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value | 9,507 |
Warrant Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value |  | 14,711
Pay-to-Play Convertible Notes |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value |  | 15,942
2023 Convertible Notes |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value |  | 132,687
U.S. Government Treasury Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 30,883 | 30,580
U.S. Government money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 5,336 | 9,247
Mutual Funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 5,120 | 5,067
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 41,339 | 44,894
Level 1 | U.S. Government Treasury Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 30,883 | 30,580
Level 1 | U.S. Government money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 5,336 | 9,247
Level 1 | Mutual Funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total assets, measured at fair value | 5,120 | 5,067
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value | 9,507 | 163,340
Level 3 | Earnout Share Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value | $ 9,507 |
Level 3 | Warrant Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value |  | 14,711
Level 3 | Pay-to-Play Convertible Notes |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value |  | 15,942
Level 3 | 2023 Convertible Notes |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total liabilities, measured at fair value |  | $ 132,687

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