Contents of Significant Accounts - Summary of Net Cash Outflow Arising from Deconsolidation of the Subsidiary (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2018 TWD ($)
Net Cash Outflow Arising From Deconsolidation Of Subsidiary [Abstract]
Cash received	$ 4,617
Net cash of subsidiary derecognized	(14,430)
Net cash outflow from deconsolidation	$ (9,813)

The amount of cash and cash equivalents in subsidiaries or other businesses over which control is obtained or lost. [Refer: Subsidiaries [member]; Cash and cash equivalents]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 40
-Subparagraph c
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-URIDate 2019-03-27

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- Definition

The aggregate cash flows arising from losing control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 39
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_39&doctype=Standard
-URIDate 2019-03-27

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- Definition

Cash received.

+ References

No definition available.

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- Definition

Net Cash Outflow Arising From Deconsolidation Of Subsidiary [Abstract].

+ References

No definition available.

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