Share-Based Compensation - Stock Options Valuation Assumptions (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value (in dollars per share)	$ 6.83	$ 12.20
Expected dividend yield	0.00%	0.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate	3.42%	1.46%
Expected volatility	89.94%	85.91%
Expected term (in years)	5 years 2 months 12 days	5 years 6 months
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate	4.67%	4.23%
Expected volatility	101.49%	89.35%
Expected term (in years)	6 years 1 month 6 days	6 years 1 month 6 days