v3.26.1
Financial instruments classification - Summary of financial instruments of the consolidated statements of financial position (Detail) - PEN (S/)
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about financial instruments [line items]    
Financial assets at fair value through profit or loss S/ 2,086,869,000 S/ 1,919,768,000
Financial assets, debt instruments measured at fair value through other comprehensive income 21,662,651,000 20,724,892,000
Financial assets, equity instruments measured at fair value through other comprehensive income 556,149,000 458,268,000
Financial assets at amortized cost 70,078,996,000 67,579,297,000
Total 94,384,665,000 90,682,225,000
Financial liabilities at fair value through profit or loss   61,153,000
Financial liabilities 207,084,000 163,441,000
Financial liabilities at amortized cost 86,125,742,000 83,963,514,000
Total 86,332,826,000 84,126,955,000
Deposits And Obligations [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at amortized cost 56,027,630,000 53,768,028,000
Total 56,027,630,000 53,768,028,000
Inter Bank Funds [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at amortized cost 55,019,000  
Total 55,019,000  
Due To Banks And Correspondents [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at amortized cost 7,166,014,000 7,562,057,000
Total 7,166,014,000 7,562,057,000
Bonds Notes And Other Obligations [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at amortized cost 5,590,408,000 6,075,433,000
Total 5,590,408,000 6,075,433,000
Due from customers on acceptances    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at amortized cost 51,332,000 9,163,000
Total 51,332,000 9,163,000
Insurance And Reinsurance Contract Liabilities [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at amortized cost 13,063,254,000 12,524,320,000
Total 13,063,254,000 12,524,320,000
Other accounts payable and other liabilities [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities at fair value through profit or loss 207,084,000 163,441,000
Financial liabilities at amortized cost 4,172,085,000 4,024,513,000
Total 4,379,169,000 4,187,954,000
Cash and due from banks [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at amortized cost 14,035,949,000 12,615,226,000
Total 14,035,949,000 12,615,226,000
Inter Bank Funds [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at amortized cost 40,006,000 220,060,000
Total 40,006,000 220,060,000
Financial Investments [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at fair value through profit or loss 1,965,991,000 1,776,567,000
Financial assets, debt instruments measured at fair value through other comprehensive income 21,662,651,000 20,724,892,000
Financial assets, equity instruments measured at fair value through other comprehensive income 556,149,000 458,268,000
Financial assets at amortized cost 3,989,015,000 3,898,198,000
Total 28,173,806,000 26,857,925,000
Loans Net [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at amortized cost 50,770,150,000 49,229,448,000
Total 50,770,150,000 49,229,448,000
Due from customers on acceptances [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at amortized cost 51,332,000 9,163,000
Total 51,332,000 9,163,000
Trade receivables [member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at fair value through profit or loss 120,878,000 143,201,000
Financial assets at amortized cost 1,135,362,000 1,588,600,000
Total 1,256,240,000 1,731,801,000
Reinsurance Contract Assets [Member]    
Disclosure of detailed information about financial instruments [line items]    
Financial assets at amortized cost 57,182,000 18,602,000
Total S/ 57,182,000 S/ 18,602,000