v3.26.1
Financial Risks - Summary of Weighted Assigned to Each Economic Scenario (Detail)
Jun. 30, 2026
Dec. 31, 2025
Base [member]    
Disclosure of weighted assumptions on economic variables based on scenario type [line items]    
Weightings 40.00% 40.00%
Upside [member]    
Disclosure of weighted assumptions on economic variables based on scenario type [line items]    
Weightings 30.00% 30.00%
Downside [member]    
Disclosure of weighted assumptions on economic variables based on scenario type [line items]    
Weightings 30.00% 30.00%