Post- Employment Benefits - Summary of Remeasurement Components Recognized in Other Comprehensive Loss (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Remeasurements recognized in other comprehensive loss | ||
| Effect of changes in demographic assumptions | $ 0 | $ 510 |
| Effect of changes in financial assumptions | 991 | (418) |
| Effect in experience assumptions | (246) | 840 |
| Return on plan assets (excluding interest income) | 51 | 50 |
| Total remeasurements recognized as other comprehensive loss | 796 | 982 |
| Cumulative amount of remeasurements immediately recognized in other comprehensive loss | $ (7,041) | $ (7,837) |