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Financial Instruments at Fair Value Through Profit or Loss - Summary of Financial Instruments at Fair Value Through Profit or Loss (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] |  |  |
Financial assets mandatorily classified as at FVTPL | $ 8,934,151 | $ 290,731 | $ 5,436,280
Current | 6,825,157 | 222,101 | 2,933,446
Non-current | 2,108,994 | 68,630 | 2,502,834
Financial liabilities held for trading | 626,760 | 20,396 | 417,660
Swap contracts [member] | Derivative financial instruments [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | 3,205,828 | 104,323 | 85,629
Financial liabilities held for trading | 543,547 | 17,688 | 360,797
Forward exchange contracts [member] | Derivative financial instruments [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | 246,710 | 8,028 | 23,373
Financial liabilities held for trading | 83,213 | 2,708 | 56,863
Call option and put option of convertible bonds [Member] | Derivative financial instruments [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL |  |  | 8,463
Target redemption forward contracts [member] | Derivative financial instruments [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL |  |  | 500
Quoted ordinary shares [member] | Non derivative financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | 2,521,964 | 82,069 | 2,683,193
Private-placement funds [member] | Non derivative financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | 1,599,932 | 52,064 | 1,322,686
Unquoted preferred shares [member] | Non derivative financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | 628,156 | 20,441 | 583,270
Contingent considerations [member] | Non derivative financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | 438,176 | 14,259 | 394,943
Open-end mutual funds [member] | Non derivative financial assets [member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Financial assets mandatorily classified as at FVTPL | $ 293,385 | $ 9,547 | $ 334,223

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- Definition The amount of current financial assets measured at fair value through profit or loss. [Refer: Financial assets 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 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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