Fair Value Measurements - Schedule of Assumptions Used for Initial Measurement of Equity Instruments (Details) - Non-employee earnout shares	Sep. 30, 2025 $ / shares yr	Dec. 31, 2024 yr $ / shares
Tranche 1
Fair Value Measurements
Fair value per shares (in dollars per share)	$ 2.92	$ 6.50
Tranche 2
Fair Value Measurements
Fair value per shares (in dollars per share)	$ 1.63	$ 5.11
Stock price ($)
Fair Value Measurements
Fair value measurement input	8.08	9.28
Risk-free interest rate
Fair Value Measurements
Fair value measurement input	0.0363	0.0426
Volatility
Fair Value Measurements
Fair value measurement input	0.360	0.440
Expected term (years)
Fair Value Measurements
Fair value measurement input | yr	1.7	2.4
Expected dividends
Fair Value Measurements
Fair value measurement input	0.000	0.000