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v3.19.1

Revenue - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2018
Performance obligations satisfied over time [member] |
Disclosure of geographical areas [line items] |
Percentage of payment option over total revenue | 1.00%

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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
Name: | ifrs-full_DisclosureOfGeographicalAreasLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of the entity's revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 8 -IssueDate 2018-01-01 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=para_34&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_PercentageOfEntitysRevenue
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_PerformanceObligationsAxis=ifrs-full_PerformanceObligationsSatisfiedOverTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |