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Non-current Financial Assets at Fair Value Through Other Comprehensive Income - Additional Information (Detail) - TWD ($) shares in Thousands | 1 Months Ended |
--- | --- | ---
Apr. 30, 2023 | Dec. 31, 2023
Non-current financial assets at fair value through other comprehensive income [Line Items] |  |
Financial assets at fair value through other comprehensive income were pledged |  | $ 0
Daypower Energy [member] | Ordinary shares [member] |  |
Non-current financial assets at fair value through other comprehensive income [Line Items] |  |
Number of shares acquired | 1,000 |
Amount of shares acquired value | $ 12,500,000 |
Acquired Percentage Of Shareholdings | 10.00% |

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