Trade Receivables, Net - Summary of Movements of Loss Allowance of Trade Receivables (Detail) - Trade receivables [member] $ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
TWD ($)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
TWD ($)
|
Dec. 31, 2023
TWD ($)
|
|
| Disclosure of financial assets [Line Items] | ||||
| Beginning balance | $ 407,133 | $ 12,979 | $ 332,756 | $ 164,408 |
| Remeasurement of loss allowance | 225,969 | 7,203 | 154,301 | 108,672 |
| Acquisitions through business combinations | 0 | 0 | 0 | 67,034 |
| Amounts written off | (106,228) | (3,386) | (92,319) | (8,376) |
| Effects of foreign currency exchange differences | 7,503 | 239 | 12,395 | 1,018 |
| Ending balance | $ 534,377 | $ 17,035 | $ 407,133 | $ 332,756 |