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Related Party Transactions - Summary of Significant Related Party Transactions (Detail) shares in Thousands, $ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 TWD ($) shares | Dec. 31, 2023 TWD ($) | Dec. 31, 2024 USD ($)
Disclosure of transactions between related parties [Line Items] |  |  |
Payable to equipment suppliers | $ 21,473 | $ 58,549 | $ 655
Unimos Shanghai [member] |  |  |
Disclosure of transactions between related parties [Line Items] |  |  |
Relationship | Associate |  |
JMC ELECTRONICS CO., LTD. [member] |  |  |
Disclosure of transactions between related parties [Line Items] |  |  |
Relationship | Associate |  |
Daypower Energy [member] |  |  |
Disclosure of transactions between related parties [Line Items] |  |  |
Relationship | Associate |  |
Payable to equipment suppliers | $ 21,473 | 58,549 |
Number of shares traded | shares | 1,000 |  |
Acquisition price | $ 12,500 |  |
Siliconware Precision Industries Co., Ltd. [member] |  |  |
Disclosure of transactions between related parties [Line Items] |  |  |
Relationship | Entity that has significant influence over the Company |  |
Acquisition of property, plant and equipment | $ 10,496 | $ 35,261 |

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- Definition The amount of property and other assets purchased by the entity in related party transactions. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&anchor=para_21_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of current payables due to related parties. [Refer: Total for all related parties [member]; Payables to related parties] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Number of shares sold. + References No definition available. + Details
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- Details
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- Details
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