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Stock Based Compensation - Valuation of Stock Options - 2024 POP Plans (Details) - 2024 POP - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
May 31, 2024
Sep. 30, 2025
Stock-Based Compensation    
Common stock fair value ($ per share) $ 12.06  
Expected term (in years) 6 years  
Volatility 122.00%  
Risk-free interest rate 4.38%  
Share-Based payment award, options, issued in period, fair value   $ 18.0
Performance period   36 months
Maximum    
Stock-Based Compensation    
Share-Based payment award, award derived service period   2 years 1 month 6 days
Minimum    
Stock-Based Compensation    
Share-Based payment award, award derived service period   1 year 4 months 24 days