The date on which share-based payment arrangements are effective.

No definition available.

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- Definition

The date on which share-based payment arrangements are granted. [Refer: Share-based payment arrangements [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph IG23
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_IG23&doctype=Implementation%20Guidance
-URIDate 2016-03-31

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

The exercise price of outstanding share options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_d&doctype=Standard
-URIDate 2016-03-31

+ Details

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- Definition

The number of instruments granted in share-based payment arrangement.

+ References

+ Details

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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 47
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_47_a_i&doctype=Standard
-URIDate 2016-03-31

+ Details

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Period Type:	duration

- Details

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- Details

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- Details

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Share-based Payments Arrangement - CHIEF Share-based Compensation Plan (Detail) - CHIEF Telecom Inc. (CHIEF) [Member]	12 Months Ended
	Dec. 31, 2017 TWD ($)	Dec. 19, 2017 TWD ($)	Dec. 31, 2016 TWD ($)	Jul. 31, 2016 TWD ($)	Jun. 30, 2016 TWD ($)	Oct. 22, 2015 TWD ($)
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Exercise Price		$ 147.00		$ 34.40	$ 43.00	$ 43.00
Grant Date 2015.10.22 [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Effective Date	2015.10.22
Grant Date	2015.10.22
Stock Options Units	2,000
Exercise Price	$ 34.40		$ 34.40
Original price	$ 43.00
Grant Date 2017.12.19 [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Effective Date	2017.12.18
Grant Date	2017.12.19
Stock Options Units	950
Exercise Price	$ 147.00