Financial Assets at Fair Value Through Other Comprehensive Income - Additional Information (Detail) $ in Thousands, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
TWD ($)
BONDS
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
TWD ($)
|
|
| Financial assets at fair value through other comprehensive income [line items] | |||
| Corporate bonds amount | $ 5,868,433 | $ 187,072 | $ 5,677,922 |
| Unsecured cumulative subordinate corporate bonds [member] | |||
| Financial assets at fair value through other comprehensive income [line items] | |||
| Corporate bonds amount | $ 1,000 | $ 32 | |
| Number of bonds acquired | 1,000 | ||
| Corporate bonds annual interest rate | 3.50% | 3.50% | |
| Effective interest rate | 3.20% | 3.20% |