Profit Before Income Tax - Summary of Other Income (Detail) $ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2023
TWD ($)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
TWD ($)
|
Dec. 31, 2021
TWD ($)
|
|
| Analysis of income and expense [abstract] | ||||
| Bank deposits | $ 1,510,422 | $ 49,328 | $ 646,407 | $ 529,132 |
| Contracts with customers | 2,985 | 97 | 8,340 | 13,197 |
| Government subsidies | 940,127 | 30,703 | 797,612 | 767,918 |
| Dividends income | 256,160 | 8,366 | 278,381 | 289,852 |
| Other income | $ 2,709,694 | $ 88,494 | $ 1,730,740 | $ 1,600,099 |