Contents of Significant Accounts - Financial Assets Measured at Amortized Cost (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2024 TWD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 TWD ($)
Financial Assets Measured At Amortized Cost [Abstract]
Time deposits with original maturities over three months	$ 3,739,224		$ 6,353,768
Current	3,739,224	$ 114,035	6,131,077
Non-current	0	$ 0	222,691
Total	$ 3,739,224		$ 6,353,768

The amount of current financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 8
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_f&doctype=Standard
-URIDate 2024-03-27

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- Definition

The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets]

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- Definition

The amount of non-current financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

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- Definition

Deposits measured at amortized cost.

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Financial assets measured at amortized cost.

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