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v3.25.1

Profit Before Income Tax - Summary of Employees' Compensation and Remuneration to Directors (Detail) $ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 TWD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 TWD ($) | Dec. 31, 2022 TWD ($)
Analysis Of Income And Expense [line items] |  |  |  |
Percentage of employees' compensation | 0.25% | 0.25% | 0.25% |
Employees' compensation | $ 81,113 | $ 2,474 | $ 79,385 |
Percentage of remuneration to directors | 0.25% | 0.25% | 0.40% |
Remuneration to directors | $ 79,947 | $ 2,438 | $ 127,016 |
Resolved by the board of directors [member] |  |  |  |
Analysis Of Income And Expense [line items] |  |  |  |
Employees' compensation |  |  | 79,450 | $ 155,463
Remuneration to directors |  |  | 125,000 | 247,000
Recognized in the consolidated financial statements [member] |  |  |  |
Analysis Of Income And Expense [line items] |  |  |  |
Employees' compensation |  |  | 79,385 | 155,398
Remuneration to directors |  |  | $ 127,016 | $ 248,637

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