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Net Loss Per Ordinary Share - Computation of Basic and Diluted Net Loss Per Ordinary Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Jan. 31, 2022
Numerator:      
Net loss $ (169,417) $ (65,386) $ (26,411)
Denominator:      
Weighted-average ordinary shares - basic 39,878,872 38,363,638 36,577,120
Weighted-average ordinary shares - diluted 39,878,872 38,363,638 36,577,120
Net loss per ordinary share:      
Basic $ (4.25) $ (1.7) $ (0.72)
Diluted $ (4.25) $ (1.7) $ (0.72)