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v3.25.1

Share-Based Payment Arrangements - Additional Information (Detail) - TWD ($) $ in Millions | 12 Months Ended |
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Liabilities from share-based payment transactions | $ 455.7 | $ 62.7
Employee Restricted Stock Awards [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Maximum percentage of other equity instruments vested after subject to performance metrics | 110.00% |
Maximum percentage of other equity instruments vested subject to entity total shareholder achievement performance metric | 100.00% |
Maximum percentage of other equity instruments vested modifier increase decrease subject to environmental social and governance metric achievement | 10.00% |
Employee Restricted Stock Awards [Member] | First Year Anniversary of Grant Date [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Percentage of vesting of award under share-based payment arrangement | 50.00% |
Employee Restricted Stock Awards [Member] | Second Year Anniversary Of Grant Date [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Percentage of vesting of award under share-based payment arrangement | 25.00% |
Employee Restricted Stock Awards [Member] | Third Year Anniversary Of Grant Date [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Percentage of vesting of award under share-based payment arrangement | 25.00% |

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- Definition The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Types of share-based payment arrangements [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 51 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_b_i&doctype=Standard -URIDate 2024-03-27 + Details
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