Financial risk management - Summary of Financial Liabilities Subject to Offsetting (Detail) - PEN (S/) S/ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of offsetting of financial liabilities [line items] | ||
| Gross amounts of recognized financial liabilities | S/ 207,084 | S/ 102,288 |
| Net amounts of financial liabilities presented in the consolidated statement of financial position | 207,084 | 102,288 |
| Financial instruments (including non-cash guarantees) | (31,633) | (30,231) |
| Cash guarantees pledged | (93,021) | (21,568) |
| Net amount | 82,430 | 50,489 |
| Financial investments, Derivatives receivable [member] | ||
| Disclosure of offsetting of financial liabilities [line items] | ||
| Gross amounts of recognized financial liabilities | 207,084 | 102,288 |
| Net amounts of financial liabilities presented in the consolidated statement of financial position | 207,084 | 102,288 |
| Financial instruments (including non-cash guarantees) | (31,633) | (30,231) |
| Cash guarantees pledged | (93,021) | (21,568) |
| Net amount | S/ 82,430 | S/ 50,489 |