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Financial Instruments - Summary of Categories of Financial Instruments (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2024 TWD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 TWD ($)
Disclosure of detailed information about financial instruments [line items]
Mandatorily at FVTPL	$ 10,832,042	$ 330,346	$ 6,628,690
Measured at amortized cost (Note 1)	191,953,553	5,854,028	183,248,314
Trade receivables, net	113,419,820	3,458,976	99,536,761
Held for trading	243,752	7,433	1,302,342
Contingent considerations	589,117	17,966
Financial liabilities for hedging	12,456,104	379,875	12,516,971
Measured at amortized cost (Note 2)	344,543,769	10,507,587	295,416,495
Financial assets at fair value through other comprehensive income, category [member]
Disclosure of detailed information about financial instruments [line items]
Equity instruments	12,933,733	394,441	620,831
Debt instruments	1,025,760	31,283	1,042,906
Trade receivables, net	$ 6,532,508	$ 199,222	$ 5,637,485

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- Definition

Fair value through profit or loss, classified as held for trading at financial liabilities

+ References

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Financial liabilities designated as hedging instruments at fair value through profit or loss

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- Definition

The amount of current debt instruments issued. [Refer: Debt instruments issued]

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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]

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The amount of current financial liabilities measured at fair value through profit or loss that were designated as such upon initial recognition or subsequently. [Refer: Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently]

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The amount of current investments in equity instruments that the entity has designated at fair value through other comprehensive income. [Refer: Investments in equity instruments designated at fair value through other comprehensive income]

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The amount of current trade receivables. [Refer: Trade receivables]

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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]

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