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Financial Risk Management - Percentage of revenues (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Customer A and Its Affiliates [Member]
IFRS Statement [Line Items]
Percentage of entity's revenue	32.60%	29.50%	28.10%
Customer B and Its Affiliates [Member]
IFRS Statement [Line Items]
Percentage of entity's revenue	6.60%	8.90%	12.60%
Customer C [Member]
IFRS Statement [Line Items]
Percentage of entity's revenue	12.70%	5.60%	5.70%

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- Definition

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

+ References

No definition available.

+ Details

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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 2020-01-01
-Paragraph 34
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_34&doctype=Standard
-URIDate 2020-01-01

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