v3.24.1
Business Combinations - Summary of Goodwill Recognized on Acquisitions (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2023
TWD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
TWD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
TWD ($)
Dec. 31, 2020
TWD ($)
Disclosure of detailed information about business combination [Line Items]            
Goodwill $ 52,404,416 $ 1,711,444 $ 52,313,399 $ 1,708,472 $ 52,072,413 $ 52,709,053
ITGEU [member]            
Disclosure of detailed information about business combination [Line Items]            
Total consideration 50,368          
Less: Fair value of identifiable net assets acquired (83,482)          
Goodwill (33,114)          
SER [Member]            
Disclosure of detailed information about business combination [Line Items]            
Total consideration 217,919          
Less: Fair value of identifiable net assets acquired (217,919)          
HIRSCHMANN [member]            
Disclosure of detailed information about business combination [Line Items]            
Total consideration 2,016,595 65,859        
Less: Fair value of identifiable net assets acquired (2,011,448) (65,691)        
Goodwill $ 5,147 $ 168