v3.26.1
Intangible and goodwill, net - Summary of movement of intangible assets and cumulative amortization (Detail) - PEN (S/)
S/ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance S/ 1,667,753    
Ending balance 1,626,106 S/ 1,667,753  
Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 3,177,526 2,975,032 S/ 2,698,486
Additions 221,967 245,334 280,388
Disposals and write-offs (5,532) (42,840) (3,842)
Ending balance 3,393,961 3,177,526 2,975,032
Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (1,509,773) (1,287,912) (1,065,284)
Amortization of the year (260,448) (254,301) (223,015)
Disposals and write-offs 2,366 32,440 387
Ending balance (1,767,855) (1,509,773) (1,287,912)
Net book value 1,626,106 1,667,753 S/ 1,687,120
Computer software [member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 1,870,385    
Additions 138,363    
Transfers 62,204    
Disposals and write-offs (1,419)    
Ending balance 2,069,533 1,870,385  
Computer software [member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (1,320,781)    
Amortization of the year (222,758)    
Disposals and write-offs 992    
Ending balance (1,542,547) (1,320,781)  
Net book value 526,986    
In Transit Software [Member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 168,991    
Additions 78,010    
Transfers (61,003)    
Ending balance 185,998 168,991  
In Transit Software [Member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Net book value 185,998    
Customer-related intangible assets [member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 110,042    
Ending balance 110,042 110,042  
Customer-related intangible assets [member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (30,261)    
Amortization of the year (11,004)    
Ending balance (41,265) (30,261)  
Net book value 68,777    
Brand names [member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 82,546    
Ending balance 82,546 82,546  
Brand names [member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Net book value 82,546    
Technology-based intangible assets [member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 97,016    
Ending balance 97,016 97,016  
Technology-based intangible assets [member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (26,680)    
Amortization of the year (9,702)    
Ending balance (36,382) (26,680)  
Net book value 60,634    
Other intangible assets [member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 179,471    
Additions 5,594    
Transfers (1,201)    
Disposals and write-offs (4,113)    
Ending balance 179,751 179,471  
Other intangible assets [member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance (132,051)    
Amortization of the year (16,984)    
Disposals and write-offs 1,374    
Ending balance (147,661) (132,051)  
Net book value 32,090    
Goodwill [member] | Gross carrying amount [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 669,075    
Ending balance 669,075 S/ 669,075  
Goodwill [member] | Accumulated depreciation and amortisation [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Net book value S/ 669,075