v3.26.1
Financial Instruments - Summary of Categories of Financial Instruments (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2025
TWD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
TWD ($)
Disclosure of detailed information about financial instruments [line items]      
Mandatorily at FVTPL $ 10,187,492 $ 324,753 $ 10,832,042
Measured at amortized cost (Note 1) 219,695,988 7,003,379 191,953,553
Trade receivables, net 125,042,214 3,986,044 113,419,820
Held for trading 825,420 26,312 243,752
Contingent considerations 569,948 18,169 589,117
Financial liabilities for hedging 9,282,400 295,901 12,456,104
Measured at amortized cost (Note 2) 459,199,442 14,638,172 344,543,769
Financial assets at fair value through other comprehensive income, category [member]      
Disclosure of detailed information about financial instruments [line items]      
Equity instruments 12,607,114 401,885 12,933,733
Debt instruments 1,008,140 32,137 1,025,760
Trade receivables, net $ 6,182,804 $ 197,093 $ 6,532,508