v3.26.1
Financial Risk and Fair Value Disclosures - 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 [abstract]      
Financial assets at fair value through profit or loss $ 18,153,916   $ 18,456,932
Financial assets at fair value through other comprehensive income 13,774,749   17,209,328
Financial assets measured at amortized cost      
Cash and cash equivalents (cash on hand excluded) 110,653,397   104,993,968
Receivables 33,731,393   34,994,933
Refundable deposits 1,643,661 $ 52,396 1,992,400
Other financial assets 12,506,177   3,739,224
Total 190,463,293   181,386,785
Financial liabilities at fair value through profit or loss 57,163   901,000
Financial liabilities measured at amortized cost      
Short-term loans 8,408,772 $ 268,051 8,515,000
Payables 45,297,553   42,259,798
Bonds payable (current portion included) 50,228,305   30,051,568
Long-term loans (current portion included) 14,331,790   36,476,909
Lease liabilities 6,000,846   6,419,016
Guarantee deposits (current portion included) 40,867,857   42,874,494
Total $ 165,192,286   $ 167,497,785