Equity - Summary of Unearned Employee Compensation (Detail) $ 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 Restricted Stock Awards for Employees [Abstract] | ||||
| Balance at January 1 | $ (1,631,257) | $ (52,001) | $ 0 | $ (432,847) |
| Issuance of shares | 0 | 0 | (1,954,312) | 0 |
| Share-based payment expenses | 1,182,815 | 37,705 | 395,487 | 11,840 |
| Valuation adjustments | (206,674) | (6,588) | (72,432) | 421,007 |
| Balance at December 31 | $ (655,116) | $ (20,884) | $ (1,631,257) | $ 0 |