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DEFERRED REVENUE - Disclosure of deferred revenue (Details) - CAD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Disclosure Of Deferred Income [Abstract] |  |
Current | $ 5,604 | $ 4,558
Non-current | 47,154 | 39,433
Total | $ 52,758 | $ 43,991

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- Definition The amount of liability representing income that has been received but is not yet earned. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78&doctype=Standard -URIDate 2019-03-27 + Details
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Period Type: | instant

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- Definition The amount of deferred income classified as current. [Refer: Deferred income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78&doctype=Standard -URIDate 2019-03-27 + Details
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Period Type: | instant

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- Definition The amount of deferred income classified as non-current. [Refer: Deferred income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78&doctype=Standard -URIDate 2019-03-27 + Details
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Period Type: | instant

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- References No definition available. + Details
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