v3.26.1
Cash and due from banks and inter-bank funds - Summary of legal reserve (Detail) - PEN (S/)
S/ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Cash and Cash Equivalent [Line Items]    
Legal reserve S/ 8,206,501 S/ 8,613,604
Non-mandatory reserve 2,632,767 1,573,148
Cash balances not subject to legal reserve 54 253
Total 10,839,322 10,187,005
Deposits in the BCRP [member]    
Cash and Cash Equivalent [Line Items]    
Legal reserve 6,149,956 5,969,218
Cash in vaults {member]    
Cash and Cash Equivalent [Line Items]    
Legal reserve 2,056,545 2,644,386
Overnight deposits in BCRP [member]    
Cash and Cash Equivalent [Line Items]    
Non-mandatory reserve 1,580,610 564,600
Term deposits in BCRP [Member]    
Cash and Cash Equivalent [Line Items]    
Non-mandatory reserve 760,000 800,000
Cash and clearing [member]    
Cash and Cash Equivalent [Line Items]    
Non-mandatory reserve S/ 292,157 S/ 208,548