Fair Value Disclosures on Financial Instruments - Valuation Techniques and Inputs (Details) - Unlisted equity investments - Fair Value - Measured at Fair Value on a Recurring Basis	12 Months Ended
Dec. 31, 2018
Lowest
Valuation Techniques and Inputs
Revenue multiple	8.6
Discount for lack of marketability	10.00%
Highest
Valuation Techniques and Inputs
Revenue multiple	9.0
Discount for lack of marketability	20.00%

A revenue multiple used as a significant Level 3 unobservable input for assets. [Refer: Level 3 of fair value hierarchy [member]]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 13
-IssueDate 2018-01-01
-Paragraph IE63
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2018-03-01&anchor=para_IE63&doctype=Illustrative%20Examples
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 13
-IssueDate 2018-01-01
-Paragraph 93
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2018-03-01&anchor=para_93_d&doctype=Standard
-URIDate 2018-03-16

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration