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Convertible Bond and Derivative Financial Liability - Additional Information (Detail) | 12 Months Ended |
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Dec. 31, 2022 USD ($) $ / shares shares | Dec. 19, 2019 HKD ($)
Summary of convertible bonds [line items] |  |
Convertible bond, maturity date | more than one year but within 5 years |
Debt Instrument, conversion price | $ / shares | $ 8.08 |
Class A Ordinary Shares [Member] |  |
Summary of convertible bonds [line items] |  |
Conversion of debt to ordinary shares | shares | 1,856,436 |
Convertible bonds [member] |  |
Summary of convertible bonds [line items] |  |
Convertible bond, interest rate |  | 2.00%
Convertible bond, principal amount | $ |  | $ 15,000,000
Convertible bond, maturity date | June 30, 2023 |
Convertible bond, conversion basis | 99.44 American Depositary Shares (“ADSs”) per US$1,000 principal |
Convertible bond, conversion price | $ / shares | $ 99.44 |
Convertible bond, minimum conversion amount | $ | $ 10,000,000 |

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