Equity - Schedule Of Detailed Information About Hedges Of Net Investments Of Foreign Operations (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 hedges [line items] | ||||
| Balance at January 1 | $ 715,703 | $ 22,815 | $ 277,441 | $ 520,281 |
| Foreign currency risk - loans denominated in foreign currency | (865,379) | (27,586) | 438,262 | (242,840) |
| Balance at December 31 | $ (149,676) | $ (4,771) | $ 715,703 | $ 277,441 |