v3.26.1
Property, furniture and equipment, net - Summary of movement of property, furniture and equipment (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
PEN (S/)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
PEN (S/)
Dec. 31, 2023
PEN (S/)
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance S/ 814,432,000   S/ 804,832,000  
Ending balance 967,293,000   814,432,000 S/ 804,832,000
Net book value 967,293,000   814,432,000 804,832,000
Land [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Additions | $   $ 34,683,000    
Property, plant and equipment not subject to operating leases [member] | Land [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 228,914,000      
Net book value 228,914,000      
Property, plant and equipment not subject to operating leases [member] | Buildings Facilities And Leasehold Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 301,517,000      
Net book value 301,517,000      
Property, plant and equipment not subject to operating leases [member] | Fixtures and fittings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 247,111,000      
Net book value 247,111,000      
Property, plant and equipment not subject to operating leases [member] | Vehicles [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 349,000      
Net book value 349,000      
Property, plant and equipment not subject to operating leases [member] | InTransit Equipment and WorkInProgress [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 51,656,000      
Net book value 51,656,000      
Property, plant and equipment subject to operating leases [member] | Buildings Facilities And Leasehold Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 137,113,000      
Net book value 137,113,000      
Property, plant and equipment subject to operating leases [member] | Fixtures and fittings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Ending balance 633,000      
Net book value 633,000      
Gross carrying amount [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 2,073,738,000   1,992,426,000 1,864,977,000
Additions 351,192,000   210,579,000 183,546,000
Transfer (to) from investment property 4,724,000     12,193,000
Disposals, write-offs and others (64,321,000)   (129,267,000) (68,290,000)
Ending balance 2,365,333,000   2,073,738,000 1,992,426,000
Net book value 2,365,333,000   2,073,738,000 1,992,426,000
Gross carrying amount [member] | Land [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Additions 116,909,000      
Gross carrying amount [member] | Property, plant and equipment not subject to operating leases [member] | Land [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 111,594,000      
Additions 116,909,000      
Transfer (to) from investment property 1,291,000      
Disposals, write-offs and others (880,000)      
Ending balance 228,914,000   111,594,000  
Net book value 228,914,000   111,594,000  
Gross carrying amount [member] | Property, plant and equipment not subject to operating leases [member] | Buildings Facilities And Leasehold Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 617,276,000      
Additions 14,576,000      
Transfers 19,871,000      
Transfer (to) from investment property 3,433,000      
Disposals, write-offs and others (6,176,000)      
Ending balance 648,980,000   617,276,000  
Net book value 648,980,000   617,276,000  
Gross carrying amount [member] | Property, plant and equipment not subject to operating leases [member] | Fixtures and fittings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 919,197,000      
Additions 125,796,000      
Transfers 8,404,000      
Disposals, write-offs and others (33,621,000)      
Ending balance 1,019,776,000   919,197,000  
Net book value 1,019,776,000   919,197,000  
Gross carrying amount [member] | Property, plant and equipment not subject to operating leases [member] | Vehicles [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 1,548,000      
Disposals, write-offs and others (248,000)      
Ending balance 1,300,000   1,548,000  
Net book value 1,300,000   1,548,000  
Gross carrying amount [member] | Property, plant and equipment not subject to operating leases [member] | InTransit Equipment and WorkInProgress [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 36,340,000      
Additions 44,154,000      
Transfers (28,275,000)      
Disposals, write-offs and others (563,000)      
Ending balance 51,656,000   36,340,000  
Net book value 51,656,000   36,340,000  
Gross carrying amount [member] | Property, plant and equipment subject to operating leases [member] | Buildings Facilities And Leasehold Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 371,986,000      
Additions 48,851,000      
Disposals, write-offs and others (22,492,000)      
Ending balance 398,345,000   371,986,000  
Net book value 398,345,000   371,986,000  
Gross carrying amount [member] | Property, plant and equipment subject to operating leases [member] | Fixtures and fittings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 15,797,000      
Additions 906,000      
Disposals, write-offs and others (341,000)      
Ending balance 16,362,000   15,797,000  
Net book value 16,362,000   15,797,000  
Accumulated depreciation and amortisation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (1,259,306,000)   (1,187,594,000) (1,073,545,000)
Depreciation of the year (189,819,000)   (158,756,000) (156,023,000)
Transfer (to) from investment property 276,000      
Disposals, write-offs and others 50,809,000   87,044,000 41,974,000
Ending balance (1,398,040,000)   (1,259,306,000) (1,187,594,000)
Net book value (1,398,040,000)   (1,259,306,000) S/ (1,187,594,000)
Accumulated depreciation and amortisation [member] | Property, plant and equipment not subject to operating leases [member] | Buildings Facilities And Leasehold Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (329,538,000)      
Depreciation of the year (20,828,000)      
Transfer (to) from investment property 276,000      
Disposals, write-offs and others 2,627,000      
Ending balance (347,463,000)   (329,538,000)  
Net book value (347,463,000)   (329,538,000)  
Accumulated depreciation and amortisation [member] | Property, plant and equipment not subject to operating leases [member] | Fixtures and fittings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (680,946,000)      
Depreciation of the year (121,589,000)      
Disposals, write-offs and others 29,870,000      
Ending balance (772,665,000)   (680,946,000)  
Net book value (772,665,000)   (680,946,000)  
Accumulated depreciation and amortisation [member] | Property, plant and equipment not subject to operating leases [member] | Vehicles [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (978,000)      
Depreciation of the year (189,000)      
Disposals, write-offs and others 216,000      
Ending balance (951,000)   (978,000)  
Net book value (951,000)   (978,000)  
Accumulated depreciation and amortisation [member] | Property, plant and equipment subject to operating leases [member] | Buildings Facilities And Leasehold Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (232,123,000)      
Depreciation of the year (46,865,000)      
Disposals, write-offs and others 17,756,000      
Ending balance (261,232,000)   (232,123,000)  
Net book value (261,232,000)   (232,123,000)  
Accumulated depreciation and amortisation [member] | Property, plant and equipment subject to operating leases [member] | Fixtures and fittings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (15,721,000)      
Depreciation of the year (348,000)      
Disposals, write-offs and others 340,000      
Ending balance (15,729,000)   (15,721,000)  
Net book value S/ (15,729,000)   S/ (15,721,000)