v3.26.1
Loans, net - Additional information (Detail) - PEN (S/)
 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]        
Loans refinanced     S/ 80,944,000 S/ 104,173,000
Loans and receivables     50,770,150,000 49,229,448,000
Borrowings     5,590,408,000 6,075,433,000
National Currency [Member]        
Disclosure of financial assets [line items]        
Maximum interest rate percentage   112.98%    
Foreign currency [Member]        
Disclosure of financial assets [line items]        
Maximum interest rate percentage   93.86%    
Event After Reporting Period [Member] | National Currency [Member]        
Disclosure of financial assets [line items]        
Maximum interest rate percentage 113.16%      
Event After Reporting Period [Member] | Foreign currency [Member]        
Disclosure of financial assets [line items]        
Maximum interest rate percentage 95.40%      
Loans [Member] | securities [Member]        
Disclosure of financial assets [line items]        
Loans and receivables       123,772,000,000
Credit cards [member] | Non revolving consumer loans [Member]        
Disclosure of financial assets [line items]        
Loans and receivables     S/ 2,648,176,000,000 S/ 2,666,284,000,000