Stockholders' Equity and Share-Based Compensation - Assumptions Used in Determining Fair Value & Early exercise of Stock Options (Details) - Employee Stock Option |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] | ||
| Expected volatility | 93.40% | 93.70% |
| Risk-free interest rate | 4.00% | 4.10% |
| Expected term | 5 years 6 months | 5 years 10 months 24 days |