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v3.22.1

Segment Information - Schedule of Geographical Information (Detail) - TWD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Non-current assets [abstract] |  |
Total non-current assets | $ 21,512,896 | $ 18,925,463
ROC [member] |  |
Non-current assets [abstract] |  |
Total non-current assets | 21,506,565 | 18,913,501
PRC [member] |  |
Non-current assets [abstract] |  |
Total non-current assets | 86 | 117
Others [Member] |  |
Non-current assets [abstract] |  |
Total non-current assets | $ 6,245 | $ 11,845

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- Definition The amount of non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets and rights arising under insurance contracts. [Refer: Deferred tax assets; Financial instruments, class [member]; Non-current assets; Types of insurance contracts [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2021-01-01 -Paragraph 33 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_33_b&doctype=Standard -URIDate 2021-03-24 + Details
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