v3.22.0.1
Contracted concessional assets (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Aug. 31, 2020
Sep. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     $ 8,155,418    
Total, end of period     8,021,568 $ 8,155,418  
Amount of increase in the contracted concessional assets cost     542,080    
Depreciation, amortization, and impairment charges     439,441 408,604 $ 310,755
Impairment provision based on expected credit losses on contracted concessional financial assets     (25,000) 29,000  
Cost [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     10,824,037 10,384,597  
Additions     58,410 35,355  
Subtractions     (21,630) (72,883)  
Business combinations (Note 5)     542,080 166,861  
Currency translation differences     (370,278) 340,964  
Reclassification and other movements     (13,484) (30,857)  
Total, end of period     11,019,135 10,824,037 10,384,597
Cost [Member] | Financial Assets Under IFRIC 12 [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     936,837 872,945  
Additions     922 0  
Subtractions     0 0  
Business combinations (Note 5)     0 102,560  
Currency translation differences     (9,519) (8,166)  
Reclassification and other movements     (53,715) (30,502)  
Total, end of period     874,525 936,837 872,945
Cost [Member] | Financial Assets Under IFRS 16 Lessor [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     2,941 3,459  
Additions     442 0  
Subtractions     0 0  
Business combinations (Note 5)     0 0  
Currency translation differences     (540) (163)  
Reclassification and other movements     0 (355)  
Total, end of period     2,843 2,941 3,459
Cost [Member] | Intangible Assets Under IFRIC 12 [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     9,467,309 9,183,011  
Additions     40,383 29,213  
Subtractions     (348) (71,706)  
Business combinations (Note 5)     0 0  
Currency translation differences     (334,497) 326,791  
Reclassification and other movements     29,692 0  
Total, end of period     9,202,539 9,467,309 9,183,011
Cost [Member] | Intangible Assets Under IFRS 16 Lessee [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     66,230 60,618  
Additions     2,459 1,832  
Subtractions     0 (954)  
Business combinations (Note 5)     19,148 385  
Currency translation differences     (5,019) 4,349  
Reclassification and other movements     0 0  
Total, end of period     82,818 66,230 60,618
Cost [Member] | Property, Plant and Equipment Under IAS 16 and Other Intangible Assets Under IAS 38 [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     350,720 264,564  
Additions     14,204 4,310  
Subtractions     (21,282) (223)  
Business combinations (Note 5)     522,932 63,916  
Currency translation differences     (20,703) 18,153  
Reclassification and other movements     10,539 0  
Total, end of period     856,410 350,720 264,564
Depreciation, Amortization and Impairment [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     (2,668,619) (2,223,468)  
Additions     (460,361) (384,989)  
Subtractions       18,253  
Reversal of impairment     24,929 18,787  
Business combinations (Note 5)       (3,797)  
Currency translation differences     106,484 (93,405)  
Total, end of period     (2,997,567) (2,668,619) (2,223,468)
Depreciation, Amortization and Impairment [Member] | Financial Assets Under IFRIC 12 [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     (87,689) (57,258)  
Additions     (418) (27,111)  
Subtractions       0  
Reversal of impairment     24,929 0  
Business combinations (Note 5)       (3,797)  
Currency translation differences     289 476  
Total, end of period     (62,889) (87,689) (57,258)
Depreciation, Amortization and Impairment [Member] | Financial Assets Under IFRS 16 Lessor [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     0 0  
Additions     0 0  
Subtractions       0  
Reversal of impairment     0 0  
Business combinations (Note 5)       0  
Currency translation differences     0 0  
Total, end of period     0 0 0
Depreciation, Amortization and Impairment [Member] | Intangible Assets Under IFRIC 12 [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     (2,442,520) (2,055,946)  
Additions     (424,181) (338,393)  
Subtractions       17,571  
Reversal of impairment     0 18,787  
Business combinations (Note 5)       0  
Currency translation differences     97,356 (84,538)  
Total, end of period     (2,769,345) (2,442,520) (2,055,946)
Depreciation, Amortization and Impairment [Member] | Intangible Assets Under IFRS 16 Lessee [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     (10,060) (6,585)  
Additions     (4,759) (3,527)  
Subtractions       634  
Reversal of impairment     0 0  
Business combinations (Note 5)       0  
Currency translation differences     714 (581)  
Total, end of period     (14,105) (10,060) (6,585)
Depreciation, Amortization and Impairment [Member] | Property, Plant and Equipment Under IAS 16 and Other Intangible Assets Under IAS 38 [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Total, beginning of period     (128,350) (103,679)  
Additions     (31,003) (15,958)  
Subtractions       49  
Reversal of impairment     0 0  
Business combinations (Note 5)       0  
Currency translation differences     8,125 (8,762)  
Total, end of period     (151,228) $ (128,350) $ (103,679)
Solana [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Impairment loss on contracted concessional financial assets     43,000    
Recoverable amount of contracted concessional financial assets value in use     $ 943,000    
Assumed percentage decrease in generation     5.00% 5.00%  
Additional impairment loss with increase in discount rate     $ 69,000    
Assumed basis point increase in discount rate     0.50% 0.50%  
Additional impairment loss with increase in discount rate     $ 41,000    
Depreciation, amortization, and impairment charges       $ 48,000  
Percentage recoverable amount exceeds carrying amount       10.00%  
Solana [Member] | Bottom of Range [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Discount rate     4.50% 3.80%  
Solana [Member] | Top of Range [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Discount rate     5.00% 4.30%  
Solar Plants in Spain [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Assumed percentage decrease in generation       5.00%  
Assumed basis point increase in discount rate       0.50%  
Depreciation, amortization, and impairment charges       $ 23,000  
Percentage recoverable amount exceeds carrying amount       6.00%  
Regulatory period of plant       25 years  
Useful life of plant 35 years 25 years      
Impairment provision based on expected credit losses on contracted concessional financial assets       $ 13,000  
Solar Plants in Spain [Member] | Bottom of Range [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Discount rate       3.30%  
Solar Plants in Spain [Member] | Top of Range [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Discount rate       3.80%  
Cadonal [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Reversal of impairment       $ 15,600  
Palmatir [Member]          
Movements of Contracted Concessional Assets [Abstract]          
Reversal of impairment       $ 3,100