Annual report pursuant to Section 13 and 15(d)

Income Taxes - Effective Income Tax Rate Reconciliation (Details)

v3.20.4
Income Taxes - Effective Income Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Canada statutory income tax benefit 26.80% 25.40% 27.00%
Effect of tax rates on foreign jurisdictions (2.40%) 0.00% 0.00%
Impact of future rates and tax rate changes 6.10% (0.90%) 0.00%
Non-deductible share-based compensation 4.50% 2.10% 3.50%
Change in valuation allowance (26.00%) (22.30%) (23.00%)
Other 0.10% (0.30%) (0.60%)
Effective tax rate 0.10% (0.20%) (0.10%)