v3.26.1
Tax situation - Additional information (Detail)
€ in Millions
 1 Months Ended 12 Months Ended
Jun. 30, 2025
PEN (S/)
May 31, 2025
PEN (S/)
Apr. 30, 2025
PEN (S/)
Nov. 30, 2024
PEN (S/)
Dec. 31, 2025
PEN (S/)
shares
Dec. 31, 2025
EUR (€)
shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
PEN (S/)
Dec. 31, 2023
PEN (S/)
Excess payment rejected by the income tax authority                  
Income tax expenses         S/ 40,829,000     S/ 26,076,000 S/ 33,020,000
Over the taxable income         29.50% 29.50% 29.50% 29.50% 29.50%
Fines and interest arrears payable         S/ 116,120,000     S/ 128,047,000  
Alleged tax debt         S/ 96,279,000     92,978,000  
Third category income tax liability payment       S/ 17,800,000          
Third category income tax advances payment   S/ 7,000,000 S/ 11,300,000            
Third category income tax advances payment one S/ 3,100,000                
Third category income tax advances payment two S/ 28,800,000                
Amount of taxes are multinational groups with annual consolidated income | €           € 750      
Minimum effective tax rate         15.00% 15.00% 15.00%    
Margin percentage of cost and services rendered         5.00% 5.00% 5.00%    
Bankerization Act [Member]                  
Excess payment rejected by the income tax authority                  
Amount of payment to be made through payment means         S/ 2,000   $ 500    
Izipay [Member]                  
Excess payment rejected by the income tax authority                  
Unused tax losses         S/ 104,290,500,000     70,043,812,000  
Percentage of net income eligible to be set off against tax losses         50.00% 50.00% 50.00%    
Resolution Of Collective Collection Number Zero One Zero Zero Six Zero Zero Six Five One Three Eight [Member]                  
Excess payment rejected by the income tax authority                  
Third category income tax debt payable         S/ 62,000,000        
Tax debt         35,800,000        
2019                  
Excess payment rejected by the income tax authority                  
Third category income tax advances payment         9,700,000,000        
Interbank paid         S/ 5,000,000,000        
Event Triggering Taxation Indirect Sale Assumption [member]                  
Excess payment rejected by the income tax authority                  
Number of shares disposed or to be disposed minimum | shares         40,000 40,000 40,000    
Top of range [member]                  
Excess payment rejected by the income tax authority                  
Percentage of the market value of shares or participations of the legal person non-domiciled         50.00%        
Percentage of the capital of legal persons non-domiciled be disposed         10.00%        
SUNAT [member] | Determination And Penalty Resolutions | 2012                  
Excess payment rejected by the income tax authority                  
Provision for contingency         S/ 14,700,000     S/ 14,600,000