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Investee Companies and Other Investments (Narrative) (Details) - 6 months ended Jun. 30, 2020 - Dorad Energy Ltd [Member] € in Thousands, ₪ in Thousands | ILS (₪) | EUR (€)
--- | --- | ---
Disclosure of associates [line items] |  |
Percentage of share capital holds | 18.75% | 18.75%
License expiration date | May 31, 2034 | May 31, 2034
Amount financial agreement guarantees by direct share | € |  | € 44,300
Amount financial agreement guarantees by indirect share | € |  | € 4,100
NIS [Member] |  |
Disclosure of associates [line items] |  |
Amount financial agreement guarantees by direct share | ₪ | ₪ 172,000 |
Amount financial agreement guarantees by indirect share | ₪ | ₪ 16,000 |

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