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Financial Instruments - Summary of Detailed Information About Hedges (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2022
TWD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
TWD ($)
Disclosure of detailed information about hedges [line items]      
Financial liabilities for hedging – current $ 12,204,620 $ 397,157 $ 6,716,965
Fair value hedge of borrowings denominated in foreign currencies [member]      
Disclosure of detailed information about hedges [line items]      
Financial liabilities for hedging – current 3,278,805 106,697 2,954,921
Hedges of net investment in foreign operations [member]      
Disclosure of detailed information about hedges [line items]      
Financial liabilities for hedging – current $ 8,925,815 $ 290,460 3,762,044
Financial liabilities for hedging – non-current     $ 4,780,931