Summary of Lease Liabilities (Detail) - USD ($) $ in Thousands |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|---|---|
| Leases [Abstract] | |||||
| Current portion of lease liabilities | $ 372 | $ 361 | $ 700 | $ 1,064 | |
| Noncurrent portion of lease liabilities | $ 0 | 2,182 | 2,598 | 8,506 | 9,244 |
| Total lease liabilities | $ 2,554 | $ 2,959 | $ 9,206 | $ 10,308 |