v3.22.4
Financial information by segment, Assets and liabilities by geography (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Assets allocated [Abstract]        
Contracted concessional, PP&E and other intangible assets $ 7,483,259 $ 8,021,568    
Investments carried under the equity method 260,031 294,581 $ 116,614  
Other current financial assets 195,893 207,379    
Cash and cash equivalents (project companies) 600,990 622,689 868,501 $ 562,795
Total assets 9,100,911 9,751,930    
Liabilities allocated [Abstract]        
Long-term and short-term project debt 4,553,052 5,036,193 5,237,614  
Grants and other liabilities 1,252,513 1,263,744    
Long-term and short-term corporate debt 1,017,200 1,023,071 993,725  
Total liabilities 7,311,864 8,003,325    
Equity 1,789,047 1,748,605 $ 1,740,881 $ 1,714,856
Total liabilities and equity 9,100,911 9,751,930    
North America [Member]        
Assets allocated [Abstract]        
Contracted concessional, PP&E and other intangible assets 3,167,490 3,355,669    
Investments carried under the equity method 210,704 253,221    
Other current financial assets 118,385 135,224    
Cash and cash equivalents (project companies) 187,568 171,744    
Total assets 3,684,147 3,915,858    
Liabilities allocated [Abstract]        
Long-term and short-term project debt 1,713,125 1,792,739    
Grants and other liabilities 994,874 1,051,679    
Total liabilities 2,707,999 2,844,418    
South America [Member]        
Assets allocated [Abstract]        
Contracted concessional, PP&E and other intangible assets 1,241,879 1,231,276    
Investments carried under the equity method 4,450 0    
Other current financial assets 31,136 28,155    
Cash and cash equivalents (project companies) 85,697 74,149    
Total assets 1,363,162 1,333,580    
Liabilities allocated [Abstract]        
Long-term and short-term project debt 841,906 887,497    
Grants and other liabilities 25,031 14,445    
Total liabilities 866,937 901,942    
EMEA [Member]        
Assets allocated [Abstract]        
Contracted concessional, PP&E and other intangible assets 3,073,889 3,434,623    
Investments carried under the equity method 44,878 41,360    
Other current financial assets 46,373 44,000    
Cash and cash equivalents (project companies) 266,557 287,655    
Total assets 3,431,697 3,807,638    
Liabilities allocated [Abstract]        
Long-term and short-term project debt 1,998,021 2,355,957    
Grants and other liabilities 232,608 197,620    
Total liabilities 2,230,629 2,553,577    
Allocated [Member]        
Assets allocated [Abstract]        
Contracted concessional, PP&E and other intangible assets 7,483,259 8,021,568    
Investments carried under the equity method 260,031 294,581    
Other current financial assets 195,893 207,379    
Cash and cash equivalents (project companies) 539,822 533,548    
Total assets 8,479,005 9,057,076    
Liabilities allocated [Abstract]        
Long-term and short-term project debt 4,553,052 5,036,193    
Grants and other liabilities 1,252,513 1,263,744    
Total liabilities 5,805,565 6,299,937    
Unallocated [Member]        
Assets allocated [Abstract]        
Other non-current assets 325,893 268,876    
Other current assets (including cash and cash equivalents at holding company level) 296,013 425,978    
Total assets 621,906 694,854    
Liabilities allocated [Abstract]        
Long-term and short-term corporate debt 1,017,200 1,023,071    
Other non-current liabilities 313,328 532,312    
Other current liabilities 175,771 148,005    
Total liabilities 1,506,299 1,703,388    
Equity 1,789,047 1,748,605    
Total liabilities and equity $ 3,295,346 $ 3,451,993