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Other Income - Summary of Other income (Detail) - TWD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Analysis of other income [Abstract] |  |  |
Rental income | $ 17,326 | $ 10,260 | $ 9,249
Dividend income | 4,690 | 3,229 | 585
Grant income | 12,480 | 7,668 | 925
Other non-operating income (expenses), net | $ 34,496 | $ 21,157 | $ 10,759

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- Definition The amount of income recognised from rental activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Analysis of other income. + References No definition available. + Details
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- Definition Grant Income. + References No definition available. + Details
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- Definition Other non operating income expense. + References No definition available. + Details
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