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v3.25.1

Share-Based Payment Arrangements - Summary of Fair Value of Compensation Costs (Detail) | 12 Months Ended
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Dec. 31, 2024 TWD ($) yr | Dec. 31, 2023 TWD ($) yr
2021 Plan [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Stock price at measurement date | $ | $ 1,090 | $ 593
Residual life | 1 |
Risk-free interest rate | 1.37% | 1.14%
2022 Plan [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Stock price at measurement date | $ | $ 1,090 | $ 593
Risk-free interest rate | 1.41% | 1.15%
2023 Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Stock price at measurement date | $ | $ 1,090 |
Risk-free interest rate | 1.45% |
Bottom of range [member] | 2021 Plan [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expected price volatility | 25.61% | 24.76%
Residual life |  | 1
Bottom of range [member] | 2022 Plan [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expected price volatility | 25.61% | 24.76%
Residual life | 1 | 1
Bottom of range [member] | 2023 Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expected price volatility | 25.61% |
Residual life | 1 |
Top of range [member] | 2021 Plan [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expected price volatility | 30.78% | 29.05%
Residual life |  | 2
Top of range [member] | 2022 Plan [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expected price volatility | 30.78% | 29.05%
Residual life | 2 | 3
Top of range [member] | 2023 Plan [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Expected price volatility | 30.78% |
Residual life | 3 |

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- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2024-03-27 + Details
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Balance Type: | na
Period Type: | duration

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- Definition The option life of share options granted. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Stock price share options granted. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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