Other Balance Sheet Accounts - Schedule of Other Noncurrent Assets (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Strategic investments | $ 238,614 | $ 91,000 |
| Prepaid research and development arrangements, net of current portion | 120,898 | 60,843 |
| Other noncurrent assets | 13,168 | 13,548 |
| Total other noncurrent assets | $ 372,680 | $ 165,391 |