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Capital Stock - Schedule of Ordinary Shares Reserved for Future Issuance under Company's Equity Plans and Employee Stock Purchase Plan (Detail) - shares
Apr. 30, 2024
Jan. 31, 2024
Equity Plan [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares reserved 4,125,230 4,492,705
ESPP [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares reserved 3,731,853 2,834,384