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

Fixed assets (Narrative) (Details)

v3.19.1
Fixed assets (Narrative) (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [line items]    
Fixed Assets € 87,220 € 78,837
Capitalized borrowing costs 81  
Italy [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Fixed Assets € 44,986 48,555
Useful lives 20 years  
Spain [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Fixed Assets € 24,753 € 15,214
Useful lives 25 years  
Italy and Spain [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Depreciation expenses € 4,396  
Netherlands [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Depreciation expenses € 1,081  
Useful lives 12 years  
Photovoltaic Plants [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Fixed Assets € 98,289  
Biogas Installations [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Fixed Assets € 18,656