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Contents of Significant Accounts - Details of Long-term Loans (Detail) $ in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 TWD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 TWD ($)
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 22,883,344 |  | $ 19,279,342
Less: Current portion | (2,227,096) |  | (2,485,053)
Total | 20,656,248 | $ 674,600 | 16,794,289
Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 22,883,344 |  | $ 19,279,342
Bottom of range [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest rates applied | 1.67% | 1.67% | 1.48%
Top of range [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest rates applied | 6.56% | 6.56% | 5.62%
Secured Long-Term Loan from Mega International Commercial Bank (1) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable quarterly from October 24, 2019 to October 24, 2024 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Mega International Commercial Bank (1) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 4,866 |  | $ 9,732
Secured Long-Term Loan from Mega International Commercial Bank (2) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable quarterly from February 23, 2022 to February 22, 2027 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Mega International Commercial Bank (2) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 13,765 |  | 18,000
Secured Long-Term Loan from Taiwan Cooperative Bank (1) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable quarterly from October 19, 2015 to October 19, 2025 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Taiwan Cooperative Bank (1) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 23,784 |  | 35,676
Secured Long-Term Loan from Taiwan Cooperative Bank (2) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable monthly from May 31, 2019 to May 31, 2023 with monthly interest payments. |  |
Secured Long-Term Loan from Taiwan Cooperative Bank (2) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 0 |  | 4,375
Secured Long-Term Loan from Taiwan Cooperative Bank (3) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable monthly from August 13, 2020 to August 13, 2025 with monthly interest payments. |  |
Secured Long-Term Loan from Taiwan Cooperative Bank (3) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 20,000 |  | 32,000
Secured Long-Term Loan from Taiwan Cooperative Bank (4) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable monthly from October 29, 2020 to August 29, 2025 with monthly interest payments. |  |
Secured Long-Term Loan from Taiwan Cooperative Bank (4) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 10,345 |  | 16,552
Secured Long-Term Loan from Taiwan Cooperative Bank (5) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable monthly from April 15, 2021 to April 15, 2026 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Taiwan Cooperative Bank (5) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 58,916 |  | 84,166
Secured Syndicated Loans from China Development Bank and 6 others (1) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable semi-annually from October 20, 2016 to October 19, 2024 with semi-annually interest payments. Interest-only payment for the first and the second year. |  |
Secured Syndicated Loans from China Development Bank and 6 others (1) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 0 |  | 1,915,577
Secured Syndicated Loans from China Development Bank and 6 others (2) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable semi-annually from March 19, 2021 to March 18, 2031 with semi-annually interest payments. Interest-only payment for the first and the second year. |  |
Secured Syndicated Loans from China Development Bank and 6 others (2) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 11,766,832 |  | 12,415,200
Secured Long-Term Loan from First Commercial Bank [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable monthly from December 2, 2021 to December 2, 2026 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from First Commercial Bank [Member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 35,668 |  | 47,000
Secured Long-Term Loan from KGI Bank [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Settlement due on December 25, 2026 with monthly interest payments. |  |
Secured Long-Term Loan from KGI Bank [Member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 21,000 |  | 21,000
Secured Long-Term Loan from Shanghai Commercial Bank(1) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable monthly from January 19, 2022 to December 15, 2026 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Shanghai Commercial Bank(1) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 16,650 |  | 22,200
Unsecured Long-Term Loan from Bank of China [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable semi-annually from June 24, 2023 to June 24, 2026 with quarterly interest payments. |  |
Unsecured Long-Term Loan from Bank of China [Member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 1,515,790 |  | 1,797,364
Unsecured Long-Term Loan from Bank of Taiwan [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable quarterly from March 24, 2023 to December 24, 2025 with monthly interest payments. |  |
Unsecured Long-Term Loan from Bank of Taiwan [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 1,333,333 |  | 2,000,000
Unsecured Revolving Loan from First Commercial Bank (1) (Note A) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Settlement due on February 25, 2026 with monthly interest payments. |  |
Unsecured Revolving Loan from First Commercial Bank (1) (Note A) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 0 |  | 300,000
Unsecured Revolving Loan from First Commercial Bank (2) (Note A) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Settlement due on March 15, 2026 with monthly interestpayments. |  |
Unsecured Revolving Loan from First Commercial Bank (2) (Note A) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 0 |  | 300,000
Unsecured Revolving Loan from First Commercial Bank (3) (Note A) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Settlement due on June 15, 2026 with monthly interestpayments. |  |
Unsecured Revolving Loan from First Commercial Bank (3) (Note A) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 0 |  | 200,000
Unsecured Revolving Loan from First Commercial Bank (4) (Note B) [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 800,000 |  | 0
Redemption | Settlement due on July 13, 2028 with monthly interest payments. |  |
Secured Long-Term Loan from CTBC Bank [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 131,750 |  | 0
Redemption | Repayable semi-annually from September 25, 2023 to September 25, 2028 with monthly interest payments. Interest-only payment for the first and the second year. |  |
Secured Long-Term Loan from Taiwan Cooperative Bank (6) [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 34,400 |  | 0
Redemption | Repayable quarterly from December 28, 2023 to December 28, 2028 with monthly interest payments. Interest-only payment for the first year. |  |
Unsecured Revolving Loan from CTBC Bank (Note D) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Settlement due on July 20, 2025 with monthly interest payments. |  |
Unsecured Revolving Loan from CTBC Bank (Note D) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 4,000,000 |  | 0
Secured Long-Term Loan from Shanghai Commercial Bank (3) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans |  |  | 0
Redemption | Repayable quarterly from June 6, 2023 to March 15, 2028 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Shanghai Commercial Bank (3) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 45,000 |  |
Secured Long-Term Loan from Shanghai Commercial Bank (2) [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans |  |  | 0
Redemption | Repayable quarterly from March 23, 2023 to March 15, 2028 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Shanghai Commercial Bank (2) [member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 4,980 |  |
Secured Long-Term Loan from Mega International Commercial Bank (3) [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable quarterly from December 22, 2022 to February 23, 2027 with monthly interest payments. Interest-only payment for the first year. |  |
Secured Long-Term Loan from Mega International Commercial Bank (3) [Member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 46,265 |  | 60,500
Unsecured Revolving Loan from Yuanta Commercial Bank (Note C) [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Redemption | Repayable annually from March 2, 2023 to March 2, 2026 with monthly interest payments. |  |
Unsecured Revolving Loan from Yuanta Commercial Bank (Note C) [Member] | Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term loans | $ 3,000,000 |  | $ 0

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_7&doctype=Standard -URIDate 2023-03-23 + Details
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