Loss Per Share - Additional Information (Detail) - shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Earnings per share [abstract] | ||
| Dilutive effect on number of ordinary shares | 0 | 0 |
| X | ||||||||||
- Definition Dilutive effect on number of ordinary shares. No definition available.
|
| X | ||||||||||
- References No definition available.
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