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Key management - Disclosure of compensation, key management (Details) - Key management personnel [Member] - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Information About Key Management [Line Items]
Salaries and short-term employee benefits	$ 6,182	$ 4,416
Share-based compensation	5,151	3,086
Cost recoveries from associates	(600)	(490)
Employee benefits expense	$ 10,733	$ 7,012

X

- Definition

The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 24
-IssueDate 2018-01-01
-Paragraph 17
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-URIDate 2018-03-16

+ Details

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X

- Definition

The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]]

+ References

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-Number 24
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-URIDate 2018-03-16

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X

- Definition

The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2018-01-01
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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

Cost recoveries from associates

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No definition available.

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- Details

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