v3.26.1
Loss Per Share - Schedule of Computation of Basic Net Loss Per Share Attributable to Common Stockholders (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Numerator:                
Net loss attributable to common stockholders $ (24,695) $ (29,719) $ (9,186) $ (54,414) $ (15,005) $ (21,198) $ (32,228) $ (55,742)
Denominator:                
Weighted average shares used in computing net loss per share attributable to common stockholders, basic (in shares) 219,743,810 118,162,332 15,586,999 169,199,551 15,164,809 45,456,929 46,186,000 39,808,027
Net loss per share attributable to common stockholders (in usd per share) $ (0.11) $ (0.25) $ (0.59) $ (0.32) $ (0.99) $ (0.47) $ 0 $ (1.40)