Profit Before Income Tax - Summary of Employees' Compensation and Remuneration to Directors (Detail) $ in Thousands, $ in Thousands |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
|
Mar. 27, 2026
TWD ($)
|
Mar. 27, 2026
USD ($)
|
Dec. 31, 2025
TWD ($)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
TWD ($)
|
Dec. 31, 2023
TWD ($)
|
|
| Analysis Of Income And Expense [line items] | ||||||
| Percentage of employees' compensation | 0.25% | 0.25% | 0.25% | 0.25% | ||
| Employees' compensation | $ 101,339 | $ 3,230 | $ 101,339 | $ 3,230 | $ 81,113 | $ 79,385 |
| Percentage of remuneration to directors | 0.24% | 0.24% | 0.25% | 0.40% | ||
| Remuneration to directors | $ 97,286 | $ 3,101 | $ 79,947 | $ 127,016 | ||
| Resolved by the board of directors [member] | ||||||
| Analysis Of Income And Expense [line items] | ||||||
| Employees' compensation | 81,178 | 79,450 | ||||
| Remuneration to directors | 77,000 | 125,000 | ||||
| Recognized in the consolidated financial statements [member] | ||||||
| Analysis Of Income And Expense [line items] | ||||||
| Employees' compensation | 81,113 | 79,385 | ||||
| Remuneration to directors | $ 79,947 | $ 127,016 | ||||