Related Party Transactions - Summary of Transactions Between Related Parties (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 transactions between related parties [line items] | ||||
| Amount contributed related party transactions | $ 125,000 | $ 4,082 | $ 120,000 | $ 110,000 |
| ASE Cultural and Educational Foundation [member] | ||||
| Disclosure of transactions between related parties [line items] | ||||
| Amount contributed related party transactions | 25,000 | 816 | 20,000 | 10,000 |
| ASE Environmental Protection And Sustainability Foundation [Member] | ||||
| Disclosure of transactions between related parties [line items] | ||||
| Amount contributed related party transactions | $ 100,000 | $ 3,266 | $ 100,000 | $ 100,000 |