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Stock Based Compensation - Fair Values of Stock Options Granted Estimated Using Black-Scholes Valuation Model (Detail) - Employee Stock Option - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Risk-free interest rate (%) 3.70% 3.70%
Expected option life (in years) 5 years 10 months 24 days 5 years 10 months 24 days
Volatility (%) 84.10% 84.10%
Weighted average share price of the Company (USD per share) $ 9.98 $ 10