Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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-Section 50
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Gross number of share options (or share units) granted during the period.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Stock Options - Inducement Narrative (Details) - shares			12 Months Ended
Stock Options - Inducement Narrative (Details) - shares	Nov. 30, 2020	Sep. 02, 2020	Dec. 31, 2020
Share-based awards
Granted (in shares)			2,359,074
Inducement Award Program
Share-based awards
Granted (in shares)	200,000	120,000
Inducement Award Program \| Stock options
Share-based awards
Vesting period			4 years
Inducement Award Program \| Maximum
Share-based awards
Expiration period			10 years