Share-Based Compensation - Stock Options Valuation Assumptions (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 1.76	$ 1.43
Risk-free interest rate, Minimum	4.02%	4.13%
Risk-free interest rate, Maximum	4.02%	4.14%
Expected volatility, Minimum	89.48%	89.22%
Expected volatility, Maximum	89.48%	91.46%
Expected dividend yield	0.00%	0.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	6 years 1 month 6 days	5 years
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	6 years 1 month 6 days	6 years 1 month 6 days