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Stock-Based Compensation - Valuation (Details) - Employee Stock Option
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Black-Scholes option with following assumptions:    
Expected stock price volatility, minimum (as a percent) 74.00% 76.00%
Expected stock price volatility, maximum (as a percent) 76.00% 81.00%
Expected option term 6 years 6 years
Risk-free interest rate, minimum (as a percent) 3.80% 4.20%
Risk-free interest rate, maximum (as a percent) 4.20% 4.70%
Expected dividend yield (as a percent) 0.00% 0.00%