v3.26.1
Loans, net - Summary of portfolio classified by maturity dates (Detail) - PEN (S/)
S/ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Disclosure of provision matrix [line items]    
Direct loans S/ 50,770,150 S/ 49,229,448
Past Due And Under Legal Collection Loans [Member]    
Disclosure of provision matrix [line items]    
Direct loans 51,829,932 50,415,364
Commercial loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 317,941 335,512
Consumer    
Disclosure of provision matrix [line items]    
Direct loans 485,014 531,183
Mortgage loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 344,938 322,064
Small and micro-business loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 82,726 129,999
Up to 4 months [member] | Past Due And Under Legal Collection Loans [Member]    
Disclosure of provision matrix [line items]    
Direct loans 265,127 177,367
Up to 4 months [member] | Commercial loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 47,616 33,440
Up to 4 months [member] | Consumer    
Disclosure of provision matrix [line items]    
Direct loans 122,786 81,020
Up to 4 months [member] | Mortgage loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 54,040 52,779
Up to 4 months [member] | Small and micro-business loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 40,685 10,128
Over 4 months [member] | Past Due And Under Legal Collection Loans [Member]    
Disclosure of provision matrix [line items]    
Direct loans 476,146 640,853
Over 4 months [member] | Commercial loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 91,351 84,331
Over 4 months [member] | Consumer    
Disclosure of provision matrix [line items]    
Direct loans 271,162 371,731
Over 4 months [member] | Mortgage loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 92,371 95,106
Over 4 months [member] | Small and micro-business loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 21,262 89,685
Under legal collection [member] | Past Due And Under Legal Collection Loans [Member]    
Disclosure of provision matrix [line items]    
Direct loans 489,346 500,538
Under legal collection [member] | Commercial loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 178,974 217,741
Under legal collection [member] | Consumer    
Disclosure of provision matrix [line items]    
Direct loans 91,066 78,432
Under legal collection [member] | Mortgage loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 198,527 174,179
Under legal collection [member] | Small and micro-business loans [member]    
Disclosure of provision matrix [line items]    
Direct loans 20,779 30,186
Gross carrying amount [member]    
Disclosure of provision matrix [line items]    
Direct loans 50,599,313 49,096,606
Gross carrying amount [member] | Within 1 month    
Disclosure of provision matrix [line items]    
Direct loans 5,661,943 4,693,941
Gross carrying amount [member] | Between 1 and 3 months    
Disclosure of provision matrix [line items]    
Direct loans 5,698,338 5,315,685
Gross carrying amount [member] | Between 3 months and 1 year    
Disclosure of provision matrix [line items]    
Direct loans 11,814,257 12,967,405
Gross carrying amount [member] | Between 1 and 5 years    
Disclosure of provision matrix [line items]    
Direct loans 20,476,099 20,000,898
Gross carrying amount [member] | From 5 years onwards [member]    
Disclosure of provision matrix [line items]    
Direct loans S/ 6,948,676 S/ 6,118,677