Financial Assets at Fair Value Through Other Comprehensive Income - Summary of Investments in Debt Instruments at Fair Value Through Other Comprehensive Income (Detail) $ in Thousands, $ in Thousands |
Dec. 31, 2023
TWD ($)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
TWD ($)
|
|---|---|---|---|
| Financial assets at fair value through other comprehensive income [line items] | |||
| Investments in debt instruments at FVTOCI | $ 1,042,906 | $ 34,060 | $ 1,059,712 |
| Unsecured subordinate corporate bonds [member] | |||
| Financial assets at fair value through other comprehensive income [line items] | |||
| Investments in debt instruments at FVTOCI | $ 1,042,906 | $ 34,060 | $ 1,059,712 |