v3.26.1
Financial risk management - Summary Of Undiscounted Cash Flow (Detail) - PEN (S/)
S/ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities S/ 101,924,307 S/ 99,294,274
Derivative financial assets held for trading [1] 108,530 72,746
Derivative financial liabilities held for trading [1] 68,814 87,101
Derivative financial assets held for hedging 12,348 70,455
Derivative financial liabilities held for hedging (138,270) (15,187)
Deposits and obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 56,299,643 54,168,966
Inter-bank funds [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 55,019  
Due to banks and correspondents [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 9,148,438 9,771,630
Bonds, notes and other obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 6,291,488 6,723,897
Due from customers on acceptances [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 51,332 9,163
Insurance and reinsurance contract liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 25,906,302 24,534,952
Other accounts payable, provisions and other liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 4,172,085 4,085,666
Assets held for trading liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for trading 2,947,304 4,953,203
Derivative financial liabilities held for trading 2,950,324 4,982,853
Total (3,020) (29,650)
Assets held to hedge liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for hedging 1,394,519 1,732,135
Derivative financial liabilities held for hedging 1,563,242 1,703,500
Total (168,723) 28,635
Up to 1 month [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 44,279,349 44,239,715
Up to 1 month [member] | Deposits and obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 41,664,775 39,797,251
Up to 1 month [member] | Inter-bank funds [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 55,019  
Up to 1 month [member] | Due to banks and correspondents [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,092,767 1,949,333
Up to 1 month [member] | Bonds, notes and other obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 41,403 70,454
Up to 1 month [member] | Due from customers on acceptances [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 17,717 4,691
Up to 1 month [member] | Insurance and reinsurance contract liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 133,500 116,089
Up to 1 month [member] | Other accounts payable, provisions and other liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,274,168 2,301,897
Up to 1 month [member] | Assets held for trading liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for trading 653,321 1,637,115
Derivative financial liabilities held for trading 632,958 1,605,814
Total 20,363 31,301
Up to 1 month [member] | Assets held to hedge liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial liabilities held for hedging   1,690
Total   (1,690)
From 1 to 3 months [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 8,043,458 6,550,211
From 1 to 3 months [member] | Deposits and obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 6,430,086 5,412,063
From 1 to 3 months [member] | Due to banks and correspondents [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,166,490 792,039
From 1 to 3 months [member] | Bonds, notes and other obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 2,937 2,943
From 1 to 3 months [member] | Due from customers on acceptances [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 31,889 4,472
From 1 to 3 months [member] | Insurance and reinsurance contract liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 258,161 222,826
From 1 to 3 months [member] | Other accounts payable, provisions and other liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 153,895 115,868
From 1 to 3 months [member] | Assets held for trading liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for trading 522,073 880,914
Derivative financial liabilities held for trading 543,862 1,088,989
Total (21,789) (208,075)
From 1 to 3 months [member] | Assets held to hedge liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for hedging 6,606 86,992
Derivative financial liabilities held for hedging 8,036 78,266
Total (1,430) 8,726
From 3 to 12 months [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 11,436,668 10,321,682
From 3 to 12 months [member] | Deposits and obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 5,688,525 6,777,915
From 3 to 12 months [member] | Due to banks and correspondents [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 2,177,827 733,189
From 3 to 12 months [member] | Bonds, notes and other obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 2,074,773 1,652,261
From 3 to 12 months [member] | Due from customers on acceptances [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,726  
From 3 to 12 months [member] | Insurance and reinsurance contract liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,153,588 1,007,404
From 3 to 12 months [member] | Other accounts payable, provisions and other liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 340,229 150,913
From 3 to 12 months [member] | Assets held for trading liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for trading 925,197 1,123,569
Derivative financial liabilities held for trading 849,053 962,496
Total 76,144 161,073
From 3 to 12 months [member] | Assets held to hedge liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for hedging 1,040,782 414,593
Derivative financial liabilities held for hedging 1,170,242 450,019
Total (129,460) (35,426)
From 1 to 5 years [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 12,774,533 13,184,377
From 1 to 5 years [member] | Deposits and obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,388,051 925,035
From 1 to 5 years [member] | Due to banks and correspondents [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,082,178 2,465,292
From 1 to 5 years [member] | Bonds, notes and other obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 3,832,413 4,665,178
From 1 to 5 years [member] | Insurance and reinsurance contract liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 6,277,806 4,994,624
From 1 to 5 years [member] | Other accounts payable, provisions and other liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 194,085 134,248
From 1 to 5 years [member] | Assets held for trading liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for trading 594,077 1,134,788
Derivative financial liabilities held for trading 624,174 1,145,555
Total (30,097) (10,767)
From 1 to 5 years [member] | Assets held to hedge liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for hedging 347,131 1,230,550
Derivative financial liabilities held for hedging 384,964 1,173,525
Total (37,833) 57,025
More than 5 years [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 25,390,299 24,998,289
More than 5 years [member] | Deposits and obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 1,128,206 1,256,702
More than 5 years [member] | Due to banks and correspondents [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 3,629,176 3,831,777
More than 5 years [member] | Bonds, notes and other obligations [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 339,962 333,061
More than 5 years [member] | Insurance and reinsurance contract liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 18,083,247 18,194,009
More than 5 years [member] | Other accounts payable, provisions and other liabilities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Non-derivative financial liabilities 2,209,708 1,382,740
More than 5 years [member] | Assets held for trading liabilities arising from financing activities [member]    
Disclosure Of Maturity Analysis Of Undiscounted Cash Flows Payables [Line Items]    
Derivative financial assets held for trading 252,636 176,817
Derivative financial liabilities held for trading 300,277 179,999
Total S/ (47,641) S/ (3,182)
[1] During the years 2025, 2024 and 2023, the Group recognized net gains for S/58,127,000, net losses for S/13,793,000 and net gains for S/68,315,000 , respectively, as a result of the valuation of derivative financial instruments held for trading, which were recorded in the caption “Net gain from financial assets at fair value through profit or loss” in the consolidated statement of income.