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SHARE-BASED PAYMENTS - Restricted share units (Details) - Restricted share units | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 CAD ($) EquityInstruments $ / shares | Dec. 31, 2019 CAD ($) EquityInstruments $ / shares | Dec. 31, 2020 USD ($) EquityInstruments | Dec. 31, 2019 USD ($)
Share-based payment transaction |  |  |  |
Exercisable at end of period |  |  | 1 |
Additional consideration to acquire common share | $ |  |  | $ 0 |
Vesting period | 3 years |  |  |
Summary of information about share units outstanding |  |  |  |
Balance at January 1 | 8,512,000 | 7,626,000 |  |
Granted | 3,106,000 | 5,740,000 |  |
Redeemed | (4,199,000) | (3,888,000) |  |
Forfeited | (944,000) | (966,000) |  |
Outstanding at end of period | 6,475,000 | 8,512,000 |  |
Balance at January 1 | $ | $ 4.68 | $ 4.88 |  |
Granted | $ / shares | $ 7.42 | $ 4.56 |  |
Redeemed | $ / shares | 4.78 | 4.86 |  |
Forfeited | $ / shares | $ 5.17 | $ 4.81 |  |
Outstanding at end of period | $ | $ 5.86 | $ 4.68 |  |
Liability recognized in respect of cash settled RSUs | $ |  |  | $ 17,600,000 | $ 13,900,000

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- Definition The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 51 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_51_b_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_b&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The number of other equity instruments (ie other than share options) forfeited in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The weighted average fair value at the measurement date of granted equity instruments other than share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_b&doctype=Standard -URIDate 2020-01-01 + Details
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