The Company and Summary of Significant Accounting Policies - Non-recurring engineering services (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Accounting Policies [Abstract] | |||
| Reduction of research and development expenses | $ (1.8) | $ (1.5) | $ (3.9) |