Profit Before Income Tax - Summary of Employee Benefits Expense (Detail) $ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2023
TWD ($)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
TWD ($)
|
Dec. 31, 2021
TWD ($)
|
|
| Post-employment benefits | ||||
| Defined contribution plans | $ 3,671,057 | $ 119,891 | $ 3,590,439 | $ 3,489,642 |
| Defined benefit plans | 209,978 | 6,857 | 188,141 | 214,599 |
| Post-employment benefits | 3,881,035 | 126,748 | 3,778,580 | 3,704,241 |
| Equity-settled share-based payments | 742,890 | 24,262 | 989,843 | 699,211 |
| Other employee benefits | 86,893,030 | 2,837,787 | 98,404,937 | 90,412,118 |
| Employee benefits expense | 91,516,955 | 2,988,797 | 103,173,360 | 94,815,570 |
| Operating costs [member] | ||||
| Post-employment benefits | ||||
| Employee benefits expense | 58,390,785 | 1,906,949 | 65,063,705 | 61,555,563 |
| Operating expense [member] | ||||
| Post-employment benefits | ||||
| Employee benefits expense | $ 33,126,170 | $ 1,081,848 | $ 38,109,655 | $ 33,260,007 |