Government financing and assistance (Details) - CAD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Disclosure of disaggregation of revenue from contracts with customers [line items]
Adjustments for decrease (increase) in inventories	$ 9,274	$ 4,471
Income from government grants	47,164	63,464
Canadian Media Fund
Disclosure of disaggregation of revenue from contracts with customers [line items]
Adjustments for decrease (increase) in inventories	4,549	1,667
Government customers, production activities
Disclosure of disaggregation of revenue from contracts with customers [line items]
Adjustments for decrease (increase) in inventories	$ 17,558	$ 15,618
Customer Concentration Risk \| Government customers
Disclosure of disaggregation of revenue from contracts with customers [line items]
Concentration risk, percentage	35.00%	36.00%

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- Definition

Adjustments for decrease (increase) in inventories to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Inventories; Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2018-01-01
-Paragraph 20
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_20_a&doctype=Standard
-URIDate 2018-03-16

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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 amount of income recognised in relation to government grants. [Refer: Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 20
-IssueDate 2018-01-01
-Paragraph 39
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=20&date=2018-03-01&anchor=para_39_b&doctype=Standard
-URIDate 2018-03-16

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