v3.26.1
Loans, net - Disclosure Of Maturity Analysis For Financial Liabilities (Detail) - Gross carrying amount [member] - PEN (S/)
S/ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount S/ 5,788,869 S/ 6,163,807
Expected loss 1,156,465 1,302,428
30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 4,146,405 4,260,747
Expected loss 381,618 450,143
90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 3,496 3,060
Expected loss 3,355 2,801
30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 470,184 631,419
Expected loss 89,318 118,743
90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,168,784 1,268,581
Expected loss 682,174 730,741
Commercial loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 2,667,078 2,645,405
Expected loss 167,280 170,756
Commercial loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 2,322,142 2,169,530
Expected loss 20,831 36,418
Commercial loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount   6
Expected loss   5
Commercial loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 46,755 129,463
Expected loss 485 1,990
Commercial loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 298,181 346,406
Expected loss 145,964 132,343
Consumer loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,857,726 2,137,384
Expected loss 868,282 969,116
Consumer loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,123,709 1,299,718
Expected loss 334,616 369,516
Consumer loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,529 2,581
Expected loss 1,394 2,373
Consumer loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 261,956 322,975
Expected loss 80,734 104,900
Consumer loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 470,532 512,110
Expected loss 451,538 492,327
Mortgage loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 989,552 994,182
Expected loss 68,389 88,277
Mortgage loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 511,549 539,780
Expected loss 17,480 35,542
Mortgage loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 130,968 129,307
Expected loss 4,903 8,414
Mortgage loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 347,035 325,095
Expected loss 46,006 44,321
Small and micro-business loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 274,513 386,836
Expected loss 52,514 74,279
Small and micro-business loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 189,005 251,719
Expected loss 8,691 8,667
Small and micro-business loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,967 473
Expected loss 1,961 423
Small and micro-business loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 30,505 49,674
Expected loss 3,196 3,439
Small and micro-business loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 53,036 84,970
Expected loss 38,666 61,750
Stage 2 [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 4,616,589 4,892,166
Expected loss 470,936 568,886
Stage 2 [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 4,146,405 4,260,747
Expected loss 381,618 450,143
Stage 2 [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 470,184 631,419
Expected loss 89,318 118,743
Stage 2 [member] | Commercial loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 2,368,897 2,298,993
Expected loss 21,316 38,408
Stage 2 [member] | Commercial loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 2,322,142 2,169,530
Expected loss 20,831 36,418
Stage 2 [member] | Commercial loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 46,755 129,463
Expected loss 485 1,990
Stage 2 [member] | Consumer loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,385,665 1,622,693
Expected loss 415,350 474,416
Stage 2 [member] | Consumer loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,123,709 1,299,718
Expected loss 334,616 369,516
Stage 2 [member] | Consumer loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 261,956 322,975
Expected loss 80,734 104,900
Stage 2 [member] | Mortgage loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 642,517 669,087
Expected loss 22,383 43,956
Stage 2 [member] | Mortgage loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 511,549 539,780
Expected loss 17,480 35,542
Stage 2 [member] | Mortgage loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 130,968 129,307
Expected loss 4,903 8,414
Stage 2 [member] | Small and micro-business loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 219,510 301,393
Expected loss 11,887 12,106
Stage 2 [member] | Small and micro-business loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 189,005 251,719
Expected loss 8,691 8,667
Stage 2 [member] | Small and micro-business loans [member] | 30 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 30,505 49,674
Expected loss 3,196 3,439
Stage 3 [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,172,280 1,271,641
Expected loss 685,529 733,542
Stage 3 [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 3,496 3,060
Expected loss 3,355 2,801
Stage 3 [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,168,784 1,268,581
Expected loss 682,174 730,741
Stage 3 [member] | Commercial loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 298,181 346,412
Expected loss 145,964 132,348
Stage 3 [member] | Commercial loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount   6
Expected loss   5
Stage 3 [member] | Commercial loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 298,181 346,406
Expected loss 145,964 132,343
Stage 3 [member] | Consumer loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 472,061 514,691
Expected loss 452,932 494,700
Stage 3 [member] | Consumer loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,529 2,581
Expected loss 1,394 2,373
Stage 3 [member] | Consumer loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 470,532 512,110
Expected loss 451,538 492,327
Stage 3 [member] | Mortgage loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 347,035 325,095
Expected loss 46,006 44,321
Stage 3 [member] | Mortgage loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 347,035 325,095
Expected loss 46,006 44,321
Stage 3 [member] | Small and micro-business loans [member]    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 55,003 85,443
Expected loss 40,627 62,173
Stage 3 [member] | Small and micro-business loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 1,967 473
Expected loss 1,961 423
Stage 3 [member] | Small and micro-business loans [member] | 90 days    
Disclosure Of Maturity Analysis For Financial Liabilities [Line Items]    
Gross amount 53,036 84,970
Expected loss S/ 38,666 S/ 61,750