v3.24.0.1
Net loss per share attributable to common stockholders - Schedule of computation (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Jan. 31, 2022
Numerator:      
Net loss $ (136,885) $ (176,146) $ (118,161)
Denominator:      
Weighted-average common shares outstanding - basic (in shares) 54,561,449 52,440,067 49,888,436
Weighted-average common shares outstanding - diluted (in shares) 54,561,449 52,440,067 49,888,436
Net loss per share attributable to common stockholders - basic (in dollars per share) $ (2.51) $ (3.36) $ (2.37)
Net loss per share attributable to common stockholders - diluted (in dollars per share) $ (2.51) $ (3.36) $ (2.37)