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Investee Companies and other investments (Subsidiaries) (Narrative) (Details) € in Thousands, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 20, 2019 EUR (€) | Feb. 26, 2021 EUR (€) | Nov. 30, 2019 EUR (€) | Apr. 17, 2019 EUR (€) | Mar. 31, 2019 EUR (€) | Dec. 31, 2018 EUR (€) | Jun. 30, 2018 EUR (€) | Jun. 30, 2017 | Jul. 31, 2016 | Dec. 31, 2021 EUR (€) | Dec. 31, 2021 EUR (€) ₪ / shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020 EUR (€) | Dec. 31, 2019 EUR (€) | Dec. 31, 2021 USD ($) | Jan. 27, 2021 EUR (€) | Dec. 31, 2020 USD ($) | Dec. 20, 2019 EUR (€) | Sep. 30, 2019 EUR (€) | Apr. 30, 2017 EUR (€)
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |  |  |  | € 218,895 | € 218,895 |  | € 198,169 |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 44,783 |  | $ 50,685 | 9,645 | € 18,988 |  |  |  |  |  |
Equity |  |  |  |  |  | € 76,957 |  |  |  | 113,483 | 113,483 |  | 125,026 | 107,566 | $ 128,441 |  | $ 141,508 |  |  |
Capital Gain | € 18,800 |  |  |  |  |  |  |  |  | 0 |  | $ 0 | 0 | € 18,770 |  |  |  |  |  |
Transaction costs related to borrowings |  |  |  |  |  |  |  |  |  | 10,545 |  |  |  |  |  |  |  |  |  |
Acquisition cost of intangible asset |  |  |  |  |  |  |  |  |  | € 5,505 | 5,505 |  |  |  |  |  |  |  |  |
Groen Gas Gelderland B.V [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Green gas production capacity per year |  |  |  |  |  |  |  |  |  | 9.5 million |  | 9.5 million |  |  |  |  |  |  |  |
Repayment of shares and shareholder loans |  |  |  |  |  |  |  |  |  | € 1,567 |  |  |  |  |  |  |  |  |  |
Repayment of other existing loans |  |  |  |  |  |  |  |  |  | 5,897 |  |  |  |  |  |  |  |  |  |
Amount receivable for subsidy payments |  |  |  |  |  |  |  |  |  | 493 |  |  |  |  |  |  |  |  |  |
Amount of subsidy higher than estimated |  |  |  |  |  |  |  |  |  | € 680 |  |  |  |  |  |  |  |  |  |
Groen Gas Gelderland B.V [Member] | License [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Green gas production capacity per year |  |  |  |  |  |  |  |  |  | 7.5 million |  | 7.5 million |  |  |  |  |  |  |  |
Italian indirect wholly-owned subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |  |  |  |  |  |  | 30,725 |  |  |  |  |  |  |
Adjusted amount of funds received |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 2,300 |  |
Aggregate purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 38,700 |  |
Fair value of identifiable assets acquired and liabilities assumed |  |  |  |  |  |  |  |  |  | € 7,464 | 7,464 |  |  |  |  |  |  |  |  |
Indemnification for potential tax liabilities |  |  |  |  |  |  |  |  |  | 250 | 250 |  |  |  |  |  |  |  |  |
Indemnification for potential incentive reduction |  |  |  |  |  |  |  |  |  | € 500 | € 500 |  |  |  |  |  |  |  |  |
Indemnification for potential incentive reduction second |  |  |  |  |  |  |  |  |  |  |  |  | € 2,100 |  |  |  |  |  |  |
Israel Electricity Authority [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of concession project |  |  |  |  |  |  |  |  |  | 16 years |  | 16 years |  |  |  |  |  |  |  |
Weighted interest rate |  |  |  |  |  |  |  |  |  | 5.90% | 5.90% |  |  |  | 5.90% |  |  |  |  |
Biogas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition-related costs |  |  |  |  |  |  |  |  |  | € 60 |  |  |  |  |  |  |  |  |  |
Discounted cash flow rate |  |  |  |  |  |  |  |  |  | 5.80% |  | 5.80% |  |  |  |  |  |  |  |
Ellomay Solar Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed and lump-sum amount |  | € 15,820 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ellomay Luxembourg [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advance payment |  |  | € 1,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional advance payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 304 |
Deferred payment received |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,400 |  |  |  |
Percentage of share capital holds |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount received from insurance reimbursement |  |  |  |  |  |  |  |  |  | € 187 |  |  |  |  |  |  |  |  |  |
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% |  |  |  |  |  |  |  |  |  |  |  |
Period of plant operate |  |  |  |  |  |  |  |  |  | 20 years |  | 20 years |  |  |  |  |  |  |  |
Electricity produced per KWP | ₪ / shares |  |  |  |  |  |  |  |  |  |  | € 0.9631 |  |  |  |  |  |  |  |  |
Groen Goor and Groen Gas Oude-Tonge [Member] | Biogas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Acquired additional interest subsidiaries |  |  |  |  | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of consideration of subsidiaries |  |  |  |  | € 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |
EPC Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed and lump-sum amount |  |  |  |  |  |  | € 192,500 |  |  |  |  |  |  |  |  |  |  |  |  |
Talasol SPA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of payment of shares |  |  |  | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Project financing aggregate amount |  |  |  | € 16,100 |  |  |  |  |  | € 175,000 | € 175,000 |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment of outstanding amount |  |  |  |  |  |  |  |  |  | 121,000 |  |  |  |  |  |  |  |  |  |
Deposit as debt service fund |  |  |  |  |  |  |  |  |  | 6,900 | 6,900 |  |  |  |  |  |  |  |  |
Deposit as security for letter of credit |  |  |  |  |  |  |  |  |  | 10,000 | 10,000 |  |  |  |  |  |  |  |  |
Previous financing amount |  |  |  |  |  |  |  |  |  | 3,290 |  |  |  |  |  |  |  |  |  |
Transaction costs related to borrowings |  |  |  |  |  |  |  |  |  | 3,000 |  |  |  |  |  |  |  |  |  |
Expected special dividend |  |  |  |  |  |  |  |  |  | € 30,000 | € 30,000 |  |  |  |  |  |  |  |  |

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