Stock-Based Compensation - Summary of the Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Share Based Compensation Expenses [Line Items] | ||||||
| Employee Benefits and Share-Based Compensation | $ 1,552 | $ 2,761 | $ 3,006 | $ 4,871 | $ 8,931 | $ 7,060 |
| Research Development Expense [Member] | ||||||
| Share Based Compensation Expenses [Line Items] | ||||||
| Employee Benefits and Share-Based Compensation | 688 | 1,168 | 1,368 | 1,993 | 3,733 | 2,938 |
| General Administrative Expense [Member] | ||||||
| Share Based Compensation Expenses [Line Items] | ||||||
| Employee Benefits and Share-Based Compensation | $ 864 | $ 1,593 | $ 1,638 | $ 2,878 | $ 5,198 | $ 4,122 |