Business Combinations - Summary of Net Cash Outflow (Inflow) on Acquisition of Subsidiary (Detail) - 12 months ended Dec. 31, 2023 $ in Thousands, $ in Thousands |
TWD ($) |
USD ($) |
USD ($) |
|---|---|---|---|
| ITGEU [member] | |||
| Disclosure of detailed information about business combination [Line Items] | |||
| Total consideration | $ 50,368 | ||
| Less: Cash and cash equivalent acquired | (68,719) | ||
| Net cash outflow (inflow) on acquisition of subsidiaries | (18,351) | ||
| SER [Member] | |||
| Disclosure of detailed information about business combination [Line Items] | |||
| Total consideration | 217,919 | ||
| Less: Cash and cash equivalent acquired | (18,850) | ||
| Net cash outflow (inflow) on acquisition of subsidiaries | 199,069 | ||
| HIRSCHMANN [member] | |||
| Disclosure of detailed information about business combination [Line Items] | |||
| Total consideration | 1,342,602 | $ 43,847 | |
| Less: Cash and cash equivalent acquired | (118,419) | $ (3,867) | |
| Net cash outflow (inflow) on acquisition of subsidiaries | $ 1,224,183 | $ 39,980 |