v3.26.1
Result from insurance activities - Summary of result from insurance activities (Detail) - PEN (S/)
S/ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of Effect of Insurance Contracts Recognised [Line Items]      
CSM recognized for services rendered S/ 132,263 S/ 94,596 S/ 80,778
Change in risk adjustment for non-financial risk 19,628 10,481 (119)
Insurance service expenses and expected claims incurred 455,606 425,353 404,889
Recovery of cash for insurance acquisition 20,303 15,405 10,375
Premiums assigned to the period 496,566 222,923 224,713
Insurance revenue, amounts relating to changes in liability for remaining coverage 1,124,366 768,758 720,636
Claims incurred expenses and other expenses (1,185,850) (1,027,117) (1,022,291)
Onerous contract losses and loss reversion 79,044 57,777 115,967
Amortization of insurance acquisition cash flows (171,463) (136,433) (127,009)
Changes to liabilities for incurred claims 419,090 472,913 483,179
Increase decrease through changes to liabilities for incurred claims contracts liability asset (859,179) (632,860) (550,154)
Insurance service results 265,187 135,898 170,482
Reinsurance income (8,439) (14,607) (7,208)
Financial result of insurance operations (b) (713,797) (659,965) (676,268)
Result from insurance activities (457,049) (538,674) (512,994)
General Insurance [member]      
Disclosure of Effect of Insurance Contracts Recognised [Line Items]      
CSM recognized for services rendered 56,979 61,800 49,191
Change in risk adjustment for non-financial risk 2,826 3,083 1,476
Insurance service expenses and expected claims incurred 70,961 68,268 69,145
Recovery of cash for insurance acquisition 5,028 4,846 3,489
Premiums assigned to the period 241,217 219,600 220,616
Insurance revenue, amounts relating to changes in liability for remaining coverage 377,011 357,597 343,917
Claims incurred expenses and other expenses (93,054) (84,337) (108,805)
Onerous contract losses and loss reversion 944 7,095 38,101
Amortization of insurance acquisition cash flows (156,188) (125,876) (120,123)
Changes to liabilities for incurred claims (58,636) (70,556) (58,030)
Increase decrease through changes to liabilities for incurred claims contracts liability asset (306,934) (273,674) (248,857)
Insurance service results 70,077 83,923 95,060
Reinsurance income (957) (4,009) (4,868)
Financial result of insurance operations (b) 0 0 0
Result from insurance activities 69,120 79,914 90,192
Pension Contract [Member]      
Disclosure of Effect of Insurance Contracts Recognised [Line Items]      
CSM recognized for services rendered 11,416 3,970 3,609
Change in risk adjustment for non-financial risk 15,208 7,756 255
Insurance service expenses and expected claims incurred 287,259 282,141 273,396
Recovery of cash for insurance acquisition 923 536 273
Premiums assigned to the period 251,447 0 0
Insurance revenue, amounts relating to changes in liability for remaining coverage 566,253 294,403 277,533
Claims incurred expenses and other expenses (951,035) (816,857) (798,733)
Onerous contract losses and loss reversion 75,101 50,870 66,230
Amortization of insurance acquisition cash flows (923) (536) (273)
Changes to liabilities for incurred claims 422,727 487,468 477,027
Increase decrease through changes to liabilities for incurred claims contracts liability asset (454,130) (279,055) (255,749)
Insurance service results 112,123 15,348 21,784
Reinsurance income (2,527) (3,166) 2,986
Financial result of insurance operations (b) (652,135) (627,062) (645,317)
Result from insurance activities (542,539) (614,880) (620,547)
Life insurance contracts [member]      
Disclosure of Effect of Insurance Contracts Recognised [Line Items]      
CSM recognized for services rendered 63,868 28,826 27,978
Change in risk adjustment for non-financial risk 1,594 (358) (1,850)
Insurance service expenses and expected claims incurred 97,386 74,944 62,348
Recovery of cash for insurance acquisition 14,352 10,023 6,613
Premiums assigned to the period 3,902 3,323 4,097
Insurance revenue, amounts relating to changes in liability for remaining coverage 181,102 116,758 99,186
Claims incurred expenses and other expenses (141,761) (125,923) (114,753)
Onerous contract losses and loss reversion 2,999 (188) 11,636
Amortization of insurance acquisition cash flows (14,352) (10,021) (6,613)
Changes to liabilities for incurred claims 54,999 56,001 64,182
Increase decrease through changes to liabilities for incurred claims contracts liability asset (98,115) (80,131) (45,548)
Insurance service results 82,987 36,627 53,638
Reinsurance income (4,955) (7,432) (5,326)
Financial result of insurance operations (b) (61,662) (32,903) (30,951)
Result from insurance activities S/ 16,370 S/ (3,708) S/ 17,361