Stock-Based Compensation - Summary of Total stock-based compensation expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Stock Based Compensation [Line Items] | ||
| Stock-based compensation expense | $ 8,293 | $ 1,118 |
| Cost of revenue [Member] | ||
| Stock Based Compensation [Line Items] | ||
| Stock-based compensation expense | 1,017 | 92 |
| Research and development [Member] | ||
| Stock Based Compensation [Line Items] | ||
| Stock-based compensation expense | 2,414 | 72 |
| Selling, general and administrative | ||
| Stock Based Compensation [Line Items] | ||
| Stock-based compensation expense | $ 4,862 | $ 954 |