Goodwill - Summary of Goodwill (Detail) $ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2023
TWD ($)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
TWD ($)
|
Dec. 31, 2021
TWD ($)
|
|
| Disclosure of reconciliation of changes in goodwill [line items] | ||||
| Beginning balance | $ 52,313,399 | $ 1,708,472 | $ 52,072,413 | $ 52,709,053 |
| Acquisitions through business combinations | 5,147 | 168 | ||
| Disposal of subsidiaries | (310,711) | |||
| Effect of foreign currency exchange differences | 85,870 | 2,804 | 240,986 | (325,929) |
| Ending balance | 52,404,416 | 1,711,444 | 52,313,399 | 52,072,413 |
| Cost [member] | ||||
| Disclosure of reconciliation of changes in goodwill [line items] | ||||
| Beginning balance | 54,727,512 | 1,787,313 | 54,486,526 | 55,123,166 |
| Acquisitions through business combinations | 5,147 | 168 | ||
| Disposal of subsidiaries | (310,711) | |||
| Effect of foreign currency exchange differences | 85,870 | 2,804 | 240,986 | (325,929) |
| Ending balance | 54,818,529 | 1,790,285 | 54,727,512 | 54,486,526 |
| Accumulated impairment [Member] | ||||
| Disclosure of reconciliation of changes in goodwill [line items] | ||||
| Beginning balance | 2,414,113 | 78,841 | 2,414,113 | 2,414,113 |
| Ending balance | $ 2,414,113 | $ 78,841 | $ 2,414,113 | $ 2,414,113 |