Significant Accounting Policies - Estimated Fair Value of Assets and Liability (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Asset: | ||
| Asset, fair value | $ 249,469 | $ 247,178 |
| Money Market Fund | ||
| Asset: | ||
| Asset, fair value | 82,132 | 67,456 |
| U.S. Treasury Securities | ||
| Asset: | ||
| Asset, fair value | 162,337 | 174,722 |
| Repo Securities | ||
| Asset: | ||
| Asset, fair value | 5,000 | 5,000 |
| Level 1 | ||
| Asset: | ||
| Asset, fair value | 244,469 | 242,178 |
| Level 1 | Money Market Fund | ||
| Asset: | ||
| Asset, fair value | 82,132 | 67,456 |
| Level 1 | U.S. Treasury Securities | ||
| Asset: | ||
| Asset, fair value | 162,337 | 174,722 |
| Level 2 | ||
| Asset: | ||
| Asset, fair value | 5,000 | 5,000 |
| Level 2 | Repo Securities | ||
| Asset: | ||
| Asset, fair value | $ 5,000 | $ 5,000 |