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Contents of Significant Accounts - Summary of Disaggregation of Revenue by Geography (Detail) - TWD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | $ 222,533,000 | $ 278,705,264 | $ 213,011,018
Taiwan [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | 68,360,231 | 105,213,451 | 92,427,670
China (includes Hong Kong) [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | 27,545,452 | 39,641,613 | 26,949,205
Japan [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | 11,612,866 | 17,053,279 | 13,445,127
Korea [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | 30,872,198 | 25,689,385 | 17,548,763
USA [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | 59,103,051 | 67,352,671 | 46,914,605
Europe [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | 24,932,099 | 23,711,284 | 15,708,303
Others [member] |  |  |
Disclosure of Geographical Areas [Line Items] |  |  |
Revenue from contracts with customers | $ 107,103 | $ 43,581 | $ 17,345

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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_114&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_113_a&doctype=Standard -URIDate 2023-03-23 + Details
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