v3.25.4
NET LOSS PER SHARE - Schedule of Basic And Diluted Net Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Common Stock      
Numerator:      
Allocation of net loss $ (281,928) $ (208,560) $ (175,007)
Denominator:      
Weighted-average shares outstanding, basic (in shares) 84,803,355 67,885,831 44,755,475
Weighted-average shares outstanding, diluted (in shares) 84,803,355 67,885,831 44,755,475
Net loss per share, basic (in dollars per share) $ (3.32) $ (3.07) $ (3.91)
Net loss per share, diluted (in dollars per share) $ (3.32) $ (3.07) $ (3.91)
Series A Convertible Preferred Stock | Convertible Preferred Stock      
Numerator:      
Allocation of net loss $ (29,892) $ (31,718) $ (45,421)
Denominator:      
Weighted-average shares outstanding, basic (in shares) 134,864 154,856 174,226
Weighted-average shares outstanding, diluted (in shares) 134,864 154,856 174,226
Net loss per share, basic (in dollars per share) $ (221.65) $ (204.82) $ (260.70)
Net loss per share, diluted (in dollars per share) $ (221.65) $ (204.82) $ (260.70)
Series B Convertible Preferred Stock | Convertible Preferred Stock      
Numerator:      
Allocation of net loss $ (30,781) $ (29,671) $ (17,306)
Denominator:      
Weighted-average shares outstanding, basic (in shares) 138,875 144,862 66,385
Weighted-average shares outstanding, diluted (in shares) 138,875 144,862 66,385
Net loss per share, basic (in dollars per share) $ (221.65) $ (204.82) $ (260.69)
Net loss per share, diluted (in dollars per share) $ (221.65) $ (204.82) $ (260.69)