v3.24.1
Financial Instruments - Summary of Detailed Information About Hedges Items (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2023
TWD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
TWD ($)
Dec. 31, 2023
USD ($)
Borrowings denominated in foreign currencies [member]        
Disclosure of detailed information about hedged items [line items]        
Hedged item, assets $ 2,011,050   $ 2,282,243 $ 65,678
Fair value hedge of borrowings denominated in foreign currencies [member]        
Disclosure of detailed information about hedged items [line items]        
Change in Value Used for Calculating Hedge Ineffectiveness, Hedging Instrument 7,493 $ 245 (323,884)  
Hedged item, assets (7,493)   323,884 (245)
Accumulated Amount of Fair Value Hedge Adjustments on Hedged Item, Asset 80,029   87,522 2,614
Hedges of net investment in foreign operations [member]        
Disclosure of detailed information about hedged items [line items]        
Change in Value Used for Calculating Hedge Ineffectiveness, Hedging Instrument 312,029 $ 10,190 (509,229)  
Hedged item, assets (312,029)   509,229 (10,190)
Accumulated Gains or Losses in Other Equity, Continuing Hedges $ 360,976   $ 673,005 $ 11,789