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

Investee Companies and other investments (Pumped Storage Projects) (Narrative) (Details)

v3.8.0.1
Investee Companies and other investments (Pumped Storage Projects) (Narrative) (Details)
€ in Thousands, ₪ in Thousands
1 Months Ended 12 Months Ended
Jun. 02, 2017
EUR (€)
Mar. 03, 2017
EUR (€)
Nov. 03, 2014
Dec. 27, 2017
ILS (₪)
Dec. 27, 2017
EUR (€)
Jul. 31, 2014
ILS (₪)
Jul. 31, 2014
EUR (€)
May 20, 2014
Jan. 28, 2014
Jan. 19, 2014
Nov. 30, 2013
ILS (₪)
Installment
Nov. 30, 2013
EUR (€)
Installment
Jul. 17, 2013
ILS (₪)
Dec. 31, 2017
ILS (₪)
Dec. 31, 2017
EUR (€)
Dec. 31, 2016
ILS (₪)
Dec. 31, 2016
EUR (€)
Jul. 17, 2013
EUR (€)
Disclosure of subsidiaries [line items]                                    
Amount of loan                             € 44,864   € 17,737  
Repayment of loan and accrued interest                             (1,892)      
NIS [Member] | Kochav Hayarden's [Member]                                    
Disclosure of subsidiaries [line items]                                    
Claims damages | ₪       ₪ 4,238                            
Euro [Member] | Kochav Hayarden's [Member]                                    
Disclosure of subsidiaries [line items]                                    
Claims damages         € 1,020                          
Euro [Member] | Kochav Pumped Storage [Member]                                    
Disclosure of subsidiaries [line items]                                    
Claims damages         1,020                          
Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Amount of Acquisition                             825      
Remaining amount of Acquisition                             14,882      
Pumped Storage Projects [Member] | NIS [Member]                                    
Disclosure of subsidiaries [line items]                                    
Amount of Acquisition | ₪                               ₪ 3,400    
Remaining amount of Acquisition | ₪                               ₪ 61,800    
Erez Electricity Ltd [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of share capital holds                         24.00%          
Amount of loan                                   € 164
Repayment of loan and accrued interest                       € 200            
Additional compensation aggregate amount                       € 1,400            
Number of installments | Installment                     2 2            
Erez Electricity Ltd [Member] | Pumped Storage Projects [Member] | First Installment [Member]                                    
Disclosure of subsidiaries [line items]                                    
Compensation paid                       € 250            
Compensation received             € 260                      
Erez Electricity Ltd [Member] | Pumped Storage Projects [Member] | Second Installment [Member]                                    
Disclosure of subsidiaries [line items]                                    
Compensation paid                       € 1,160            
Compensation received                             € 1,249      
Erez Electricity Ltd [Member] | Pumped Storage Projects [Member] | NIS [Member]                                    
Disclosure of subsidiaries [line items]                                    
Amount of loan | ₪                         ₪ 770          
Repayment of loan and accrued interest | ₪                     ₪ 1,000              
Additional compensation aggregate amount | ₪                     6,700              
Erez Electricity Ltd [Member] | Pumped Storage Projects [Member] | NIS [Member] | First Installment [Member]                                    
Disclosure of subsidiaries [line items]                                    
Compensation paid | ₪                     1,200              
Compensation received | ₪           ₪ 1,200                        
Erez Electricity Ltd [Member] | Pumped Storage Projects [Member] | NIS [Member] | Second Installment [Member]                                    
Disclosure of subsidiaries [line items]                                    
Compensation paid | ₪                     ₪ 5,500              
Compensation received | ₪                           ₪ 5,188        
Galilee Development Cooperative Ltd. [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of acquire cooperatives holdings                   24.75%                
Ortam's holdings [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of acquire cooperatives holdings                 24.75% 25.00%                
EPC [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of acquire cooperatives holdings     50.00%         50.00% 50.00% 50.00%                
Chashgal Elyon Ltd. [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of acquire cooperatives holdings               25.00% 25.00%                  
Electra's holdings [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of share capital holds     100.00%                              
Percentage of acquire cooperatives holdings     75.00%         24.75%                    
Sheva Mizrakot Ltd [Member] | Pumped Storage Projects [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of acquire cooperatives holdings     25.00%                              
Ellomay Pumped Storage [Member]                                    
Disclosure of subsidiaries [line items]                                    
Percentage of subsidiary owned                               75.00%    
Licence period                               72 months    
Ellomay Pumped Storage [Member] | NIS [Member] | Kochav Hayarden's [Member]                                    
Disclosure of subsidiaries [line items]                                    
Obligated post bond for damages € 2,000 € 10,000                                
Kochav Pumped Storage [Member] | NIS [Member]                                    
Disclosure of subsidiaries [line items]                                    
Claims damages         € 4,200