XML 65 R59.htm IDEA: XBRL DOCUMENT v3.25.2
Capital Stock - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 30, 2025
Jul. 31, 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 $ 1,000  
Share Repurchase Program [Member]      
Class Of Stock [Line Items]      
Stock repurchase program, expiration date   Jun. 30, 2026  
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%