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Stock-Based Compensation - Assumptions Used to Estimate Fair Value of Stock Option (Details) - Employee Stock Option
9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Stock-Based Compensation    
Risk-free interest rate, minimum 3.50% 3.50%
Risk-free interest rate, maximum 4.50% 4.40%
Volatility, minimum 68.90% 69.90%
Volatility, maximum 74.90% 80.00%
Dividend yield 0.00% 0.00%
Minimum    
Stock-Based Compensation    
Expected life (years) 3 years 9 months 18 days 3 years 9 months 18 days
Maximum    
Stock-Based Compensation    
Expected life (years) 4 years 10 months 24 days 5 years 2 months 12 days