v3.26.1
10-K Share-based compensation - RSU activity (Details) - Restricted stock units - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Number of Shares        
Unvested, beginning (in shares) 8,848,666 2,111,261 2,048,653 1,428,146
Forfeited (in shares) (250,267) (798,159) (819,826) (583,199)
Vested (in shares) (1,995,496) (872,741) (1,076,186) (533,768)
Granted (in shares) 1,251,755 8,408,305 1,958,620 1,737,474
Unvested, ending (in shares) 7,854,658 8,848,666 2,111,261 2,048,653
Inception-to-date vested (in shares) 5,888,702 3,893,206 3,020,465 1,944,279
Weighted-Average Grant Date Fair Value        
Unvested, beginning (in dollars per share) $ 4.830 $ 10.890 $ 12.360 $ 22.320
Forfeited (in dollars per share) 5.040 6.270 12.180 16.980
Vested (in dollars per share) 4.530 11.640 12.990 23.310
Granted (in dollars per share) 6.750 4.170 11.040 9.090
Unvested, ending (in dollars per share) 5.220 4.830 10.890 12.360
Inception-to-date vested (in dollar per share) $ 13.290 $ 17.760 $ 19.530 $ 23.140