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Capital Management - Percentages of Liabilities to Assets Ratio Used for Monitoring Capital (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2023
TWD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
TWD ($)
Disclosure of objectives, policies and processes for managing capital [abstract]      
Total liabilities $ 21,397,287 $ 698,801 $ 20,303,685
Total assets $ 46,160,484 $ 1,507,527 $ 44,942,945
Liabilities to assets ratio 46.35% 46.35% 45.18%