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Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 16, 2021
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Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |
Total warrant liability | $ 585 | $ 195 | $ 585 | $ 390 | $ 975 | $ 585 |
Warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 per share |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |
Remaining maturity |  |  |  |  |  |  | 5 years
Public Warrants |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |
Total warrant liability | 375 | 125 | 375 | 250 | 625 | 375 |
Private Placement Warrants |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |
Total warrant liability | $ 210 | $ 70 | $ 210 | $ 140 | $ 350 | $ 210 |

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