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Financial Instruments - Currency Risk (Details) € in Thousands | Dec. 31, 2019 EUR (€) $ / € | Dec. 31, 2018 EUR (€) $ / € | Dec. 31, 2017
--- | --- | --- | ---
US Dollars |  |  |
Sensitivity analysis |  |  |
Closing foreign exchange rate | $ / € | 1.1225 | 1.1450 |
Currency risk |  |  |
Sensitivity analysis |  |  |
Rate increase (as a percent) | 10.00% |  |
Increase in equity if exchange rate strengthened | € 799,565 | € 506,131 |
Increase (decrease) in profit due to foreign exchange differences if exchange rate strengthened | (16,291) | € (4,125) |
Rate decrease (as a percent) |  | 10.00% | 10.00%
Decrease in equity if exchange rate weakened | (799,565) | € (506,131) |
Increase (decrease) in profit due to foreign exchange differences if exchange rate weakened | 16,291 | 4,125 |
Currency risk | Euros |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 86,368 | 24,601 |
Currency risk | Euros | Trade receivables |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 4,978 | 2,691 |
Currency risk | Euros | Receivables from Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 101,685 | 54,903 |
Currency risk | Euros | Loans to Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 16,053 | 40,387 |
Currency risk | Euros | Cash and cash equivalents |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | (8,603) | 120,281 |
Currency risk | Euros | Trade payables |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 18,908 | 13,354 |
Currency risk | Euros | Payables to Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 75,435 | 60,363 |
Currency risk | Euros | Loans from Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 42,388 | 94,771 |
Currency risk | Euros | Bank loans |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 63,750 | 74,375 |
Currency risk | US Dollars |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 76,546 | 16,650 |
Currency risk | US Dollars | Trade receivables |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 29,022 | 45,801 |
Currency risk | US Dollars | Receivables from Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 3,829 | 6,291 |
Currency risk | US Dollars | Loans to Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 595 | 4,343 |
Currency risk | US Dollars | Cash and cash equivalents |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 1,698 | 1,296 |
Currency risk | US Dollars | Trade payables |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 13,826 | 6,113 |
Currency risk | US Dollars | Payables to Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | 93,713 | 63,932 |
Currency risk | US Dollars | Loans from Group companies |  |  |
Financial instrument risk |  |  |
Balance sheet exposure | € 4,151 | € 4,336 |

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