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Summary of Significant Accounting Policies - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2019 TWD-USD
Summary Of Significant Accounting Policies [abstract] |
Ownership interest percentage in subsidiary, assumption | 100.00%
Convenience exchange rate | 29.91

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- Definition Assumption of investment ownership percentage in subsidiary. + References No definition available. + Details
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- Definition Summary Of Significant Accounting Policies [abstract] + References No definition available. + Details
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- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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