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Short-term Bank Loans - Summary of Short-term Bank Loans (Detail) - Short-term borrowings [member]
$ in Thousands, $ in Thousands
Dec. 31, 2022
TWD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
TWD ($)
Dec. 31, 2021
USD ($)
Disclosure of detailed information about borrowings [Line Items]        
Unsecured bank loans     $ 731,751  
Undrawn borrowing facilities $ 4,364,400 $ 90,000 $ 2,918,249 $ 85,025
Bottom of range [member]        
Disclosure of detailed information about borrowings [Line Items]        
Interest rate range     0.6604% 0.6604%
Top of range [member]        
Disclosure of detailed information about borrowings [Line Items]        
Interest rate range     0.7394% 0.7394%