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Contents of Significant Accounts - Summary of Interest Expense Capitalized (Detail) - TWD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure Of Detailed Information About Interest Expense Capitalized [Line Items] |  |
Interest expense capitalized | $ 13,560 | $ 9,355
Bottom of range [member] |  |
Disclosure Of Detailed Information About Interest Expense Capitalized [Line Items] |  |
Interest rates applied | 1.52% | 1.48%
Top of range [member] |  |
Disclosure Of Detailed Information About Interest Expense Capitalized [Line Items] |  |
Interest rates applied | 1.96% | 1.65%

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- Definition The weighted average of interest and other costs that an entity incurs in connection with the borrowing of funds applicable to the borrowings of the entity that are outstanding during the period, other than borrowings made specifically for the purpose of obtaining a qualifying asset. [Refer: Weighted average [member]; Borrowings] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 23 -IssueDate 2024-01-01 -Paragraph 26 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=23&code=ifrs-tx-2024-en-r&anchor=para_26_b&doctype=Standard -URIDate 2024-03-27 + Details
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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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Disclosure of detailed information about interest expense capitalized. + References No definition available. + Details
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- Details
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- Details
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