v3.24.1

Equity - Schedule of appropriation of retained earnings (Detail) - TWD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Dividends per share	$ 8.8	$ 7
Legal reserve [member]
Appropriation of earnings	$ 6,001,564	$ 6,282,762
Special reserve [member]
Appropriation of earnings	(6,845,501)	798,025
Cash dividends [member]
Appropriation of earnings	$ 38,482,083	$ 30,501,981

X

- Definition

The amount of dividends paid per ordinary share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 34
-IssueDate 2023-01-01
-Paragraph 16A
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=34&code=ifrs-tx-2023-en-r&anchor=para_16A_f&doctype=Standard
-URIDate 2023-03-23

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

The increase (decrease) in equity resulting from the appropriation of retained earnings. [Refer: Retained earnings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2023-03-23

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: