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v3.20.1

Investee Companies and other investments (Subsidiaries) (Narrative) (Details) ₪ / shares in Units, € in Thousands, ₪ in Thousands | 1 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |
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Apr. 17, 2019 EUR (€) | Mar. 31, 2019 EUR (€) | Dec. 31, 2018 EUR (€) | Jun. 30, 2018 EUR (€) | Jun. 30, 2017 ILS (₪) | Jul. 31, 2016 | Dec. 31, 2019 EUR (€) | Dec. 31, 2019 EUR (€) ₪ / shares | Dec. 31, 2018 EUR (€) | Dec. 31, 2017 EUR (€) | Dec. 20, 2019 Number | Jan. 31, 2019 EUR (€) | Jan. 02, 2019 EUR (€) | Oct. 31, 2018 EUR (€) | Oct. 18, 2017 EUR (€) | Jun. 30, 2017 EUR (€) | May 31, 2017 EUR (€) | Apr. 30, 2017 EUR (€) | Dec. 31, 2016 EUR (€)
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of loan |  |  | € 66,092 |  |  |  | € 93,320 | € 93,320 | € 66,092 |  |  |  |  |  |  |  |  |  |
Fair value of identifiable assets acquired and liabilities assumed |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 9,851 |  |  |  |
Revenue |  |  |  |  |  |  | € 18,988 |  | € 18,117 | € 13,636 |  |  |  |  |  |  |  |  |
Weighted interest rate |  |  | 3.50% |  |  |  | 3.50% | 3.50% | 3.50% |  |  |  |  |  |  |  |  |  |
Equity |  |  | € 76,957 |  |  |  | € 107,566 | € 107,566 | € 76,957 | 77,500 |  |  |  |  |  |  |  |  | € 84,371
Capital gain |  |  |  |  |  |  | 18,770 |  |  |  |  |  |  |  |  |  |  |  |
Italian indirect wholly-owned subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of loan |  |  |  |  |  |  | 30,725 | 30,725 |  |  |  |  |  |  |  |  |  |  |
Adjusted amount of funds received |  |  |  |  |  |  | 2,300 | 2,300 |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  |  |  |  |  | 38,700 | 38,700 |  |  |  |  |  |  |  |  |  |  |
Number of subsidiaries sold | Number |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |  |  |  |
Indemnification for potential tax liabilities |  |  |  |  |  |  | 250 | 250 |  |  |  |  |  |  |  |  |  |  |
Indemnification for potential incentive reduction |  |  |  |  |  |  | 500 | 500 |  |  |  |  |  |  |  |  |  |  |
Indemnification for potential incentive reduction second |  |  |  |  |  |  | 2,100 | € 2,100 |  |  |  |  |  |  |  |  |  |  |
Expenses recorded for indemnification for potential incentive reduction second |  |  |  |  |  |  | € 2,100 |  |  |  |  |  |  |  |  |  |  |  |
Ellomay Luxemburg [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Escrow deposit |  |  |  |  |  |  |  |  |  |  |  |  | € 2,000 |  |  |  |  |  |
Ellomay Luxemburg [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Escrow deposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 8,000 |  |
Ellomay Luxemburg [Member] | Additional Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  | € 7,000 |  |  |  |  |  |  |
Israel Electricity Authority [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of concession project |  |  |  |  |  |  | 16 years |  |  |  |  |  |  |  |  |  |  |  |
Weighted interest rate |  |  |  |  |  |  | 5.90% | 5.90% |  |  |  |  |  |  |  |  |  |  |
Groen Gas Oude-Tonge Anaerobic Digestion Project [Member] | Euro [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  |  |  |  | 51.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ellomay Luxembourg [Member] | Biogas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  |  |  |  |  | 51.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Ellomay Luxembourg [Member] | Groen Goor Anaerobic Digestion Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  |  |  |  |  | 51.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Ludan [Member] | Biogas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  |  |  |  |  | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Talmei Yosef [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 9,476 |  |  |
Aggregate purchase price after adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 11,815 |  |  |
Percentage of financed amount |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of plant operate |  |  |  |  |  |  | 20 years |  |  |  |  |  |  |  |  |  |  |  |
Electricity produced per KWP | ₪ / shares |  |  |  |  |  |  |  | € 0.9631 |  |  |  |  |  |  |  |  |  |  |
Talmei Yosef [Member] | NIS [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price | ₪ |  |  |  |  | ₪ 39,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price after adjustment | ₪ |  |  |  |  | ₪ 48,625 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Down-payment [Member] | Ellomay Luxemburg [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,000 |  |  |  |  |
EPC Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed and lump-sum amount |  |  |  | € 192,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Talasol [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries | 24.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 10,000 |
Output percentage of financial power swap |  |  |  | 80.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of financial power swap |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from project finance |  |  | € 177,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Groen Goor and Groen Gas Oude-Tonge [Member] | Biogas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of loan |  | € 3,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Talasol SPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of payment of shares | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Project financing aggregate amount | € 16,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred aggregate purchase price | 1,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity | 6,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of shares | 4,900 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recognized amount in equity | 6,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Associated expenses in equity | € 700 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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