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

Financial Instruments (Schedule of Fair Values Hierarchy) (Details)

v3.19.1
Financial Instruments (Schedule of Fair Values Hierarchy) (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of fair value measurement of assets [line items]    
Income receivable in connection with the A.R.Z. electricity pumped storage project (see Note 6) € 1,282 € 1,249
Marketable securities 2,132 5,412
Forward contracts 977 2,650
Swap contracts 632 539
Currency swap 2,117 € 1,244
Dori loan € 9,189  
Forward contract [Member]    
Disclosure of fair value measurement of assets [line items]    
Valuation techniques for determining fair value Fair value measured on the basis of discounting the difference between the forward price in the contract and the current forward price for the residual period until redemption using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks. Fair value measured on the basis of discounting the difference between the forward price in the contract and the current forward price for the residual period until redemption using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks.
Swap contract [Member]    
Disclosure of fair value measurement of assets [line items]    
Valuation techniques for determining fair value Fair value is measured by discounting the future cash flows, over the period of the contract and using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks. Fair value is measured by discounting the future cash flows, over the period of the contract and using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks.
Currency swap [Member]    
Disclosure of fair value measurement of assets [line items]    
Valuation techniques for determining fair value Fair value is measured by discounting the future cash flows, over the period of the contract and using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks. Fair value is measured by discounting the future cash flows, over the period of the contract and using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks.
Dori loan [Member]    
Disclosure of fair value measurement of assets [line items]    
Valuation techniques for determining fair value The fair value is measured by discounting the expected future loan repayments and using market interest rates appropriate for similar instruments, including the adjustment required for the parties’ credit risks.  
Income receivable in connection with the A.R.Z. Electricity PSP [Member]    
Disclosure of fair value measurement of assets [line items]    
Valuation techniques for determining fair value The fair value of the income receivable in connection with the A.R.Z. electricity pumped storage project was calculated according to the cash flows expected to be received in 4.5 years following the financial closing of the project, discounted at a weighted interest rate of 2.36% reflecting the credit risk of the debtor. The fair value of the income receivable in connection with the A.R.Z. electricity pumped storage project was calculated according to the cash flows expected to be received in 4.5 years following the financial closing of the project, discounted at a weighted interest rate of 2.36% reflecting the credit risk of the debtor.
Marketable securities [Member]    
Disclosure of fair value measurement of assets [line items]    
Valuation techniques for determining fair value Market price Market price
Level 1 [Member]    
Disclosure of fair value measurement of assets [line items]    
Income receivable in connection with the A.R.Z. electricity pumped storage project (see Note 6)
Marketable securities
Forward contracts
Swap contracts
Currency swap
Level 2 [Member]    
Disclosure of fair value measurement of assets [line items]    
Income receivable in connection with the A.R.Z. electricity pumped storage project (see Note 6)
Marketable securities 2,132 5,412
Forward contracts 977 2,650
Swap contracts 632 539
Currency swap 2,117 1,244
Level 3 [Member]    
Disclosure of fair value measurement of assets [line items]    
Income receivable in connection with the A.R.Z. electricity pumped storage project (see Note 6) 1,282 1,249
Marketable securities
Forward contracts
Swap contracts
Currency swap
Dori loan € 9,189