v3.26.1
Capital Management - Debt to Capital Ratios (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2025
TWD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
TWD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
TWD ($)
Dec. 31, 2022
TWD ($)
Disclosure Of Capital Management [Abstract]            
Total liabilities $ 201,362,691 $ 6,418,957 $ 194,462,244      
Less: Cash and cash equivalents (110,660,052) (3,527,576) (105,000,226) $ (3,347,154) $ (132,553,615) $ (173,818,777)
Net debt 90,702,639   89,462,018      
Total equity 365,912,172 $ 11,664,398 365,706,711   $ 343,716,968 $ 322,810,948
Total capital $ 456,614,811   $ 455,168,729      
Debt to capital ratios 19.86% 19.86% 19.65% 19.65%