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Profit Before Income Tax - Additional Information (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2024
TWD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
TWD ($)
Analysis of income and expense [Line Items]      
Percentage of employees' compensation 0.25% 0.25% 0.25%
Percentage of remuneration to directors 0.25% 0.25% 0.40%
Difference Between Employee Compensation Benefits And Director Remuneration Adjusted In Net Profit $ 1,951 $ 60 $ 1,572
Bottom of range [member]      
Analysis of income and expense [Line Items]      
Percentage of employees' compensation 0.01% 0.01%  
Top of range [member]      
Analysis of income and expense [Line Items]      
Percentage of employees' compensation 1.00% 1.00%  
Percentage of remuneration to directors 0.75% 0.75%