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Stock-Based Compensation - Stock Option Valuation (Details) - Exercise of outstanding stock options
9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Assumptions used to determine the fair value of stock options granted    
Risk‑free interest rate 4.15% 4.09%
Expected volatility 75.00% 72.00%
Expected dividend yield 0.00% 0.00%
Expected term (in years) 6 years 6 years 7 days