Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Investee Companies and other investments (Subsidiaries Business Combinations) (Narrative) (Details)

v3.8.0.1
Investee Companies and other investments (Subsidiaries Business Combinations) (Narrative) (Details)
€ in Thousands, ₪ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2017
ILS (₪)
Jul. 31, 2016
EUR (€)
Jul. 31, 2015
EUR (€)
Dec. 31, 2017
EUR (€)
$ / shares
Dec. 31, 2017
ILS (₪)
Dec. 31, 2017
EUR (€)
Dec. 31, 2016
EUR (€)
Dec. 31, 2015
EUR (€)
[1]
Oct. 18, 2017
ILS (₪)
Oct. 18, 2017
EUR (€)
Jun. 30, 2017
EUR (€)
Apr. 30, 2017
EUR (€)
Dec. 31, 2010
Disclosure of subsidiaries [line items]                          
Amount of loan       € 44,864   € 44,864 € 17,737            
Fair value of identifiable assets acquired and liabilities assumed                   € 9,851      
Revenue           € 13,636 € 11,632 [1] € 12,446          
Weighted interest rate       3.50%   3.50% 3.50%           3.43%
Israel Electricity Authority [Member]                          
Disclosure of subsidiaries [line items]                          
Period of concession project         16 years 16 years              
Weighted interest rate       5.90%   5.90%              
Bottom of range [Member]                          
Disclosure of subsidiaries [line items]                          
Weighted interest rate       1.60%   1.60% 1.60%            
Top of range [member]                          
Disclosure of subsidiaries [line items]                          
Weighted interest rate       3.50%   3.50% 3.50%            
Euro [Member] | Groen Gas Oude-Tonge Anaerobic Digestion Project [Member]                          
Disclosure of subsidiaries [line items]                          
Amount of loan       € 475   € 475         € 1,700    
Percentage of Acquired additional interest subsidiaries 51.00%                        
Ellomay Spain S.L [Member]                          
Disclosure of subsidiaries [line items]                          
Percentage of Acquired additional interest subsidiaries     15.00%                    
Ellomay Spain S.L [Member] | Bottom of range [Member]                          
Disclosure of subsidiaries [line items]                          
Percentage of Acquired additional interest subsidiaries     85.00%                    
Ellomay Spain S.L [Member] | Top of range [member]                          
Disclosure of subsidiaries [line items]                          
Percentage of Acquired additional interest subsidiaries     100.00%                    
Ellomay Spain S.L [Member] | Euro [Member]                          
Disclosure of subsidiaries [line items]                          
Acquired additional interest of susidiaries     € 775                    
Ellomay Luxembourg [Member] | Waste-to-energy [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] | Waste-to-energy [Member]                          
Disclosure of subsidiaries [line items]                          
Percentage of Acquired additional interest subsidiaries   49.00%                      
Ludan [Member] | Groen Goor Anaerobic Digestion Project [Member]                          
Disclosure of subsidiaries [line items]                          
Percentage of Acquired additional interest subsidiaries         51.00% 51.00%              
Ludan [Member] | Euro [Member] | Groen Goor Anaerobic Digestion Project [Member]                          
Disclosure of subsidiaries [line items]                          
Amount of loan   € 2,000                      
Talasol [Member]                          
Disclosure of subsidiaries [line items]                          
Aggregate purchase price                       € 10,000  
Talmei Yosef [Member]                          
Disclosure of subsidiaries [line items]                          
Percentage of Acquired additional interest subsidiaries 100.00%                        
Aggregate purchase price                   € 11,815 € 9,476    
Percentage of financed amount 100.00%                        
Period of plant operate         20 years 20 years              
Electricity produced per KWP | $ / shares       € 0.9631                  
Talmei Yosef [Member] | Operation of PV Plant [Member]                          
Disclosure of subsidiaries [line items]                          
Revenue           € 183              
Talmei Yosef [Member] | NIS [Member]                          
Disclosure of subsidiaries [line items]                          
Aggregate purchase price | ₪ ₪ 39,000               ₪ 48,625        
Talmei Yosef [Member] | NIS [Member] | Operation of PV Plant [Member]                          
Disclosure of subsidiaries [line items]                          
Revenue | ₪         ₪ 757                
[1] Please refer to note 2C for functional and presentation currency.