Profit Before Income Tax - Summary of Other Operating Income and Expenses, Net (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] | ||||
| Rental income | $ 692,010 | $ 22,600 | $ 656,745 | $ 175,373 |
| Gain on disposal of property, plant and equipment | 161,761 | 5,283 | 113,356 | 71,770 |
| Royalty income | 674,859 | 22,040 | 638,867 | 135,400 |
| Impairment loss on non-financial assets (Notes 15 and 19) | (146,570) | (4,787) | (327,569) | (126,766) |
| Others | (60,290) | (1,969) | (67,071) | 934,052 |
| Other operating income and expenses, net | $ 1,321,770 | $ 43,167 | $ 1,014,328 | $ 1,189,829 |