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Finance Costs - Summary of Finance Costs (Detail) $ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024 TWD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 TWD ($)	Dec. 31, 2022 TWD ($)
Analysis of Finance Costs [abstract]
Bank loans	$ 271,221		$ 254,892	$ 138,731
Lease liabilities	19,902		18,757	14,556
Others				8
Less: Amounts capitalized in qualifying assets	(12,542)		(7,692)	(10,856)
Interest expense	278,581		265,957	142,439
Finance expense	359		433	10,840
Finance costs	$ 278,940	$ 8,507	$ 266,390	$ 153,279

X

- Definition

The amount of costs associated with financing activities of the entity.

+ References

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- Definition

The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset.

+ References

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- Definition

The amount of expense arising from interest.

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- Definition

The amount of interest expense on bank loans and overdrafts. [Refer: Interest expense; Bank overdrafts]

+ References

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The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

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The amount of interest expense on other financial liabilities. [Refer: Interest expense; Other financial liabilities]

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The amount of finance costs that the entity does not separately disclose in the same statement or note. [Refer: Finance costs]

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Analysis of Finance Costs [abstract]

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