Share Capital - Schedule of Stock-Based Compensation Expense (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-Based Compensation Expense	$ 4,994,842	$ 4,435,634	$ 14,698,180	$ 15,209,520
Stock options expense
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-Based Compensation Expense	3,483,587	2,614,273	9,821,525	8,209,557
Restricted Stock Units
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-Based Compensation Expense	$ 1,511,255	$ 1,821,361	$ 4,876,655	$ 6,999,963