v3.26.1
Lease Arrangements - Summary of Other Related Lease Information (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2025
TWD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
TWD ($)
Dec. 31, 2023
TWD ($)
Disclosure of detailed information about property, plant and equipment [abstract]        
Expenses relating to short-term leases $ 1,660,257 $ 52,925 $ 885,741 $ 316,799
Expenses relating to low-value assets leases 3,371 107 4,143 3,913
Expenses relating to variable lease payments not included in the measurement of lease liabilities 93,364 2,976 70,263 124,883
Total cash outflow for leases $ 3,416,465 $ 108,909 $ 3,426,478 $ 1,856,816