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Borrowings - Summary of Bank Loans (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2024 TWD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 TWD ($)
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Disclosure of detailed information about borrowings [line items] |  |  |
Less: current portion | $ 3,884,906 | $ 118,478 | $ 4,096,255
Noncurrent portion | 121,750,192 | 3,713,028 | 81,364,448
Bank loans [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term borrowings | 125,635,098 | 3,831,506 | 85,460,703
Less: current portion | 3,884,906 | 118,478 | 4,096,255
Noncurrent portion | 121,750,192 | 3,713,028 | 81,364,448
Bank loans [member] | Cost [member] | Other loans [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term borrowings | 117,177,156 | 3,573,564 | 77,318,195
Bank loans [member] | Cost [member] | Mortgage loans [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term borrowings | $ 8,457,942 | $ 257,942 | $ 8,142,508

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- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The current portion of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The non-current portion of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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