v3.25.1
Capital Stock - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2025
Jan. 31, 2025
Class Of Stock [Line Items]    
Preference shares, shares issued 0 0
Preference shares, shares outstanding 0 0
Stock repurchased, value $ 1,000  
Share Repurchase Program [Member]    
Class Of Stock [Line Items]    
Stock repurchased, shares 24,152  
Amount available under stock repurchase program $ 48,000  
ESPP [Member]    
Class Of Stock [Line Items]    
Additional ordinary shares reserved for issuance 524,549  
ESPP [Member] | Scenario, plan automatically increased by the lessor of [Member]    
Class Of Stock [Line Items]    
Annual increase in ordinary shares for available for future issuance 1,500,000  
Annual shares increase for future issuance by percentage under 2012 employee stock purchase plan 1.25%