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v3.23.1

Capital Surplus - Details of Capital Surplus (Detail) $ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 TWD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 TWD ($) | Dec. 31, 2020 TWD ($)
Capital surplus [line items] |  |  |  |
Beginning balance | $ 6,055,621 |  |  |
Changes in associates accounted for using equity method | 152 |  | $ 4,834 |
Ending balance | 6,055,773 | $ 197,064 | 6,055,621 |
Capital surplus [member] |  |  |  |
Capital surplus [line items] |  |  |  |
Beginning balance | 6,055,621 |  | 6,050,787 | $ 6,050,787
Changes in associates accounted for using equity method | 152 |  | 4,834 |
Ending balance | 6,055,773 |  | 6,055,621 | 6,050,787
Capital surplus [member] | Share premium [member] |  |  |  |
Capital surplus [line items] |  |  |  |
Beginning balance | 6,043,483 |  | 6,043,483 | 5,674,242
Reclassifications |  |  |  | 369,241
Ending balance | 6,043,483 |  | 6,043,483 | 6,043,483
Capital surplus [member] | Employee restricted shares [member] |  |  |  |
Capital surplus [line items] |  |  |  |
Beginning balance |  |  |  | 369,241
Reclassifications |  |  |  | (369,241)
Capital surplus [member] | Others [member] |  |  |  |
Capital surplus [line items] |  |  |  |
Beginning balance | 12,138 |  | 7,304 | 7,304
Changes in associates accounted for using equity method | 152 |  | 4,834 |
Ending balance | $ 12,290 |  | $ 12,138 | $ 7,304

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- Definition The amount received or receivable from the issuance of the entity's shares in excess of nominal value and amounts received from other transactions involving the entity's stock or stockholders. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Adjustment to additional paid in capital through change in associates accounted for using equity method. + References No definition available. + Details
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- Definition Capital Surplus. + References No definition available. + Details
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