Long-term debt (Details) - EUR (€) € in Thousands |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Long-term debt | ||
| Long-term debt | € 6,798,661 | € 6,836,108 |
| Less current portion | (475,761) | (575,283) |
| Long-term debt, less current portion | 6,322,900 | 6,260,825 |
| Schuldschein loans | ||
| Long-term debt | ||
| Long-term debt | 225,636 | 228,399 |
| Bonds | ||
| Long-term debt | ||
| Long-term debt | 6,474,170 | 6,492,120 |
| Other | ||
| Long-term debt | ||
| Long-term debt | € 98,855 | € 115,589 |