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Share-based Compensation - Additional Information (Details) $ in Millions		12 Months Ended
	Mar. 17, 2021 USD ($)	Dec. 31, 2020 shares	Dec. 31, 2019 shares
Simple and Performance Warrants
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Vesting period		3 years
Simple Warrants
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Maturity period		5 years
Granted			4,795,200
Stock Options
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Vesting period		3 years
Maturity period		10 years
Deferred Share Units
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Vesting term		DSUs are granted to directors and generally vest in equal quarterly instalments over a one year.
Vesting period		1 year
Granted		3,265,503	378,080
Restricted Share Units
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Granted		3,002,213	107,543
Restricted Share Units | Long-term Incentive Program
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Granted | $	11.9

X

- Definition

The description of the vesting requirements for a type of share-based payment arrangement that existed at any time during the period. An entity with substantially similar types of share-based payment arrangements may aggregate this information. [Refer: Share-based payment arrangements [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2020-01-01
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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

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- Definition

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

+ References

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-IssueDate 2020-01-01
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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- Definition

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- Definition

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- Definition

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