Long-term debt (Details) - EUR (€) € in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Long-term debt | ||
| Long-term debt | € 7,187,405 | € 7,287,881 |
| Less current portion | (2,039,651) | (1,596,029) |
| Long-term debt, less current portion | 5,147,754 | 5,691,852 |
| Schuldschein loans | ||
| Long-term debt | ||
| Long-term debt | 225,867 | 227,296 |
| Bonds | ||
| Long-term debt | ||
| Long-term debt | 6,685,905 | 6,967,743 |
| Other | ||
| Long-term debt | ||
| Long-term debt | € 275,633 | € 92,842 |