Income Tax - Summary of Current Tax Assets and Liabilities (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2024 TWD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 TWD ($)
Current tax assets
Tax refund receivable	$ 548,905	$ 16,740	$ 363,226
Prepaid income tax	182,923	5,579	512,372
Current tax assets	731,828	22,319	875,598
Current tax liabilities
Income tax payable	$ 8,888,506	$ 271,074	$ 9,649,556

The current amount of current tax liabilities. [Refer: Current tax liabilities]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 54
-Subparagraph n
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_n&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_CurrentTaxLiabilitiesCurrent
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant