Disclosure of investments accounted for using equity method.

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- Definition

Impairment loss on investments accounted for using the equity method.

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No definition available.

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- Definition

Percentage of ownership interest sold.

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The discount rate used in the current estimate of the present value of the future cash flows expected to be derived from an asset or cash-generating unit.

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The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

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The cash inflow from sales of investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

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The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

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The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Joint ventures [member]]

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The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

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Investments Accounted for Using the Equity Method - Additional Information (Detail) ¥ in Thousands, $ in Thousands, $ in Thousands			12 Months Ended
	Jan. 31, 2023 TWD ($)	Nov. 30, 2022 CNY (¥)	Dec. 31, 2022 TWD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 TWD ($)	Dec. 31, 2020 TWD ($)	Dec. 31, 2022 USD ($)
Disclosure of Investments Accounted for Using Equity Method [line Items]
Investments accounted for using the equity method			$ 14,679,346		$ 16,996,600	$ 12,806,673	$ 477,688
Proceeds from sales of investments accounted for using equity method						$ 125,005
Impairment loss on investments accounted for using the equity method			$ 61,206	$ 1,992
CHIPLETZ [Member]
Disclosure of Investments Accounted for Using Equity Method [line Items]
Proportion of ownership interest in associate			20.82%	20.82%	20.82%
Discount rate used in current estimate of value in use			22.20%				22.20%
Impairment loss on investments accounted for using the equity method			$ 61,206	$ 1,992
QUESTYLE [Member]
Disclosure of Investments Accounted for Using Equity Method [line Items]
Proportion of ownership interest in associate		6.67%	6.67%	6.67%	0.00%
USISH [Member] \| QUESTYLE [Member]
Disclosure of Investments Accounted for Using Equity Method [line Items]
Investments accounted for using the equity method \| ¥		¥ 20,000
YANN YUAN INVESTMENT CO., LTD [member]
Disclosure of Investments Accounted for Using Equity Method [line Items]
Percentage of Ownership (%)			27.94%	27.94%
MUtek Electronics Co., Ltd. [Member]
Disclosure of Investments Accounted for Using Equity Method [line Items]
Percentage of ownership interest in joint venture			49.00%	49.00%	49.00%
MUtek Electronics Co., Ltd. [Member] \| Shares Transfer Agreement with Cancon Information Industry Co., [Member]
Disclosure of Investments Accounted for Using Equity Method [line Items]
Proceeds from sales of investments accounted for using equity method	$ 110,880
Percentage of ownership interest sold	49.00%