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Related Party Transactions - Summary of Significant Related Party Transactions (Detail) - 12 months ended Dec. 31, 2023 $ in Thousands, $ in Thousands	TWD ($)	USD ($)
Disclosure of transactions between related parties [Line Items]
Payable to equipment suppliers	$ 58,549	$ 1,912
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	$ 58,549
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	$ 35,261

X

- Definition

The description of the nature of the related party relationships. [Refer: Related parties [member]]

+ References

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-IssueDate 2023-01-01
-Paragraph 18
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-URIDate 2023-03-23

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The amount of property and other assets purchased by the entity in related party transactions. [Refer: Related parties [member]]

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-URIDate 2023-03-23

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- Definition

The amount of current payables due to related parties. [Refer: Related parties [member]; Payables to related parties]

+ References

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-URIDate 2023-03-23

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