Share Capital - Share-based Payment Arrangement, Option, Activity (Detail) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares, Balance	9,577,947
Number of Share, Granted	2,321,729
Number of Shares, Exercised	(365,521)
Number of Shares, Forfeited	(1,304,260)
Number of Shares, Ending Balance	10,229,895	9,577,947
Number of Share, Vested	5,341,985
Number of Share, Exercisable	3,566,406
Weighted Average Exercise Price, Balance	$ 12.71
Weighted Average Exercise Price, Granted	7.72
Weighted Average Exercise Price, Exercised	7.34
Weighted Average Exercise Price, Forfeited	12.25
Weighted Average Exercise Price, Vested	17.24
Weighted Average Exercise Price, Ending Balance	11.82	$ 12.71
Weighted Average Exercise Price, Exercisable	$ 7.99
Weighted Average Contractual Life, Balance	4 years 7 months 6 days	4 years 9 months 18 days
Weighted Average Contractual Life, Granted	6 years 6 months
Weighted Average Contractual Life, Exercisable	2 years 10 months 2 days