Quarterly report [Sections 13 or 15(d)]

Net Loss Per Share Attributable to Common Stockholders - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)

v3.26.3
Net Loss Per Share Attributable to Common Stockholders - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Feb. 02, 2026
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 108,950,365 63,140,993  
Convertible Notes | Convertible Notes      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Debt instrument face value     $ 690.0
Common stock warrants      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 0 14,367,942  
Unvested restricted stock awards      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 334,803 780,799  
Unvested restricted stock units      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 54,635,770 40,295,737  
Options to purchase common stock      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 4,899,866 6,900,057  
Unvested early exercised common stock options      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 445,552 796,458  
If-converted common stock from 2032 Notes      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 48,634,374 0