Taxation - Schedule of Reconciliation of Income Tax Expense Benefit (Parenthetical) (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2020 | |
| Disclosure Of Income Taxes [Abstract] | |
| Applicable tax rate | 19.00% |
| X | ||||||||||
- Definition Disclosure of income taxes [Abstract]. No definition available.
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| X | ||||||||||
- Definition The applicable income tax rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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