Other Income - Summary of Other income (Detail) - TWD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Analysis of other income [Abstract]
Rental income	$ 35,848	$ 17,326	$ 10,260
Grant income	21,327	12,480	7,668
Dividend income	9,816	4,690	3,229
Other non-operating income (expenses), net	$ 66,991	$ 34,496	$ 21,157

The amount of dividends recognised as income. Dividends are distributions of profits to holders of equity investments in proportion to their holdings of a particular class of capital.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2022-03-24

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