Summary of Major Jurisdictions and Tax Year Subject to Examination Tax Authorities (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2024 | |
| China | |
| Income Tax Examination [Line Items] | |
| Years Subject to Income Tax Examination | 2021 and onward |
| HONG KONG | |
| Income Tax Examination [Line Items] | |
| Years Subject to Income Tax Examination | 2021 and onward |
| Taiwan | |
| Income Tax Examination [Line Items] | |
| Years Subject to Income Tax Examination | 2019 and onward |
| United States | |
| Income Tax Examination [Line Items] | |
| Years Subject to Income Tax Examination | 2019 onward |