Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

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- Definition

The profit (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. [Refer: Profit (loss)]

+ References

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-Name IFRS
-Number 3
-IssueDate 2020-01-01
-Paragraph B64
-Subparagraph q
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- Definition

The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue]

+ References

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Business Combinations - Summary of Impact of Acquisitions by Comprehensive Income (Detail) $ in Thousands, $ in Thousands	2 Months Ended	8 Months Ended			12 Months Ended
	Dec. 31, 2019 TWD ($)	Dec. 31, 2019 TWD ($)	Dec. 31, 2019 TWD ($)	Dec. 31, 2018 TWD ($)	Dec. 31, 2020 TWD ($)	Dec. 31, 2020 USD ($)
SPIL [member]
Disclosure of detailed information about business combination [Line Items]
Net Profit (loss)				$ 7,627,382
SPIL [member] \| Increase (decrease) due to changes in accounting policy [member]
Disclosure of detailed information about business combination [Line Items]
Operating revenue				$ 61,247,727
AMPI [member]
Disclosure of detailed information about business combination [Line Items]
Net Profit (loss)			$ (217,163)
AMPI [member] \| Increase (decrease) due to changes in accounting policy [member]
Disclosure of detailed information about business combination [Line Items]
Operating revenue			$ 704,243
ASEEE [member]
Disclosure of detailed information about business combination [Line Items]
Net Profit (loss)		$ (469,598)
ASEEE [member] \| Increase (decrease) due to changes in accounting policy [member]
Disclosure of detailed information about business combination [Line Items]
Operating revenue		$ (1,159)
FAFG [member]
Disclosure of detailed information about business combination [Line Items]
Net Profit (loss)					$ 91,179	$ 3,247
FAFG [member] \| Increase (decrease) due to changes in accounting policy [member]
Disclosure of detailed information about business combination [Line Items]
Operating revenue					$ 2,043,440	$ 72,772
USIPL [member]
Disclosure of detailed information about business combination [Line Items]
Net Profit (loss)	$ (11,995)
USIPL [member] \| Increase (decrease) due to changes in accounting policy [member]
Disclosure of detailed information about business combination [Line Items]
Operating revenue	$ 39,080