v3.26.1
Intangible assets - Discount Rates (Details) - Total gross carrying amount
Mar. 31, 2026
Mar. 31, 2025
Aplo SAS    
Disclosure of detailed information about intangible assets [line items]    
Discount rate used in current estimate of value in use 77.70% 0.00%
Next Finance Tech Co, Ltd.    
Disclosure of detailed information about intangible assets [line items]    
Discount rate used in current estimate of value in use 34.10% 59.60%
3iQ Digital Holdings, Inc.    
Disclosure of detailed information about intangible assets [line items]    
Discount rate used in current estimate of value in use 19.50% 0.00%