v3.26.1
Net Loss Per Ordinary Share - Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Net Loss Per Ordinary Share (Detail) - shares
3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares excluded from computation of earnings per share 1,471,852 867,678
Options to purchase ordinary shares [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares excluded from computation of earnings per share 40,515 92,800
Restricted stock units [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares excluded from computation of earnings per share 1,419,517 761,559
Employee stock purchase plan awards [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares excluded from computation of earnings per share 11,820 13,319