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Contents of Significant Accounts - Financial Assets Measured at Amortized Cost (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2023 TWD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 TWD ($)
Financial Assets Measured At Amortized Cost [Abstract]
Time deposits with original maturities over three months	$ 6,353,768		$ 849,308
Bonds	0		20,000
Total	6,353,768		869,308
Current	6,131,077	$ 200,231	861,817
Non-current	$ 222,691	$ 7,273	$ 7,491

X

- Definition

The amount of debt instruments held by the entity that were issued by a corporate entity. [Refer: Debt instruments held]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X

- Definition

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

+ References

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-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 8
-Subparagraph f
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X

- 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]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 8
-Subparagraph f
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X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 8
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- Definition

Deposits measured at amortized cost.

+ References

No definition available.

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- Definition

Financial assets measured at amortized cost.

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No definition available.

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