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Financial Instruments - Summary of Categories of Financial Instruments (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2022 TWD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 TWD ($)
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Disclosure of detailed information about financial instruments [line items] |  |  |
Mandatorily at FVTPL | $ 8,934,151 | $ 290,731 | $ 5,436,280
Measured at amortized cost (Note 1) | 188,733,772 | 6,141,678 | 200,732,680
Trade receivables, net | 114,646,999 | 3,730,784 | 115,462,210
Held for trading | 626,760 | 20,396 | 417,660
Financial liabilities for hedging | 12,204,620 | 397,157 | 11,497,896
Measured at amortized cost (Note 2) | 318,478,685 | 10,363,771 | 339,445,544
Financial assets at fair value through other comprehensive income, category [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Equity instruments | 482,559 | 15,703 | 943,354
Debt instruments | 1,059,712 | 34,485 | 1,076,458
Trade receivables, net | $ 5,402,714 | $ 175,812 | $ 6,092,462

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- Definition The amount of current debt instruments issued. [Refer: Debt instruments issued] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of current financial assets mandatorily measured at fair value through profit or loss in accordance with IFRS 9. [Refer: Financial assets at fair value through profit or loss, mandatorily measured at fair value] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 8 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_8_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of current financial liabilities at fair value through profit or loss that meet the definition of held for trading. [Refer: Current financial liabilities at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 8 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_8_e&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 8 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_8_f&doctype=Standard -URIDate 2022-03-24 + Details
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