Related party balances and transactions - Time deposits with related parties (Details) - Other related parties - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Time deposits | ||
| Related party balances and transactions | ||
| Nominal value | $ 50.0 | $ 15.0 |
| Time deposits maturing on January 2027 | ||
| Related party balances and transactions | ||
| Interest rate | 5.00% | 5.00% |
| Nominal value | $ 10.0 | $ 10.0 |
| Time deposits maturing on February 2028 | ||
| Related party balances and transactions | ||
| Interest rate | 5.00% | |
| Nominal value | $ 20.0 | |
| Time deposits maturing on July 2028 | ||
| Related party balances and transactions | ||
| Interest rate | 4.75% | |
| Nominal value | $ 10.0 | |
| Time deposits maturing on August 2025 | ||
| Related party balances and transactions | ||
| Interest rate | 9.60% | |
| Nominal value | $ 5.0 | |
| Time deposits maturing on August 2028, one | ||
| Related party balances and transactions | ||
| Interest rate | 5.00% | |
| Nominal value | $ 5.0 | |
| Time deposits maturing on August 2028, two | ||
| Related party balances and transactions | ||
| Interest rate | 10.50% | |
| Nominal value | $ 5.0 | |