v3.21.2
Contracted concessional assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Contracted Concessional Assets [Abstract]      
Contracted concessional assets $ 8,173,917   $ 8,155,418
Amount of increase in the contracted concessional assets cost 507,018    
Impairment loss on contracted concessional financial assets 43,079    
Impairment provision based on expected credit losses on contracted concessional financial assets (24,000) $ 29,000  
Solana [Member]      
Contracted Concessional Assets [Abstract]      
Recoverable amount of contracted concessional financial assets value in use 943,255    
Additional impairment loss with increase in discount rate $ 69,000    
Assumed percentage decrease in generation 5.00%    
Additional impairment loss with increase in discount rate $ 41,000    
Assumed basis point increase in discount rate 0.50%    
Solana [Member] | Bottom of range [member]      
Contracted Concessional Assets [Abstract]      
Discount rate 4.50%    
Solana [Member] | Top of range [member]      
Contracted Concessional Assets [Abstract]      
Discount rate 5.00%    
Financial assets under IFRIC 12 [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets $ 827,681   849,149
Financial assets under IFRS 16 lessor [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 2,895   2,941
Intangible assets under IFRIC 12 [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 6,586,122   7,024,789
Intangible assets under IFRS 16 lessee [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 66,179   56,170
Other intangible assets [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 14,198   7,689
Property, plant and equipment [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 676,842   214,680
Cost [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 11,125,459   10,824,037
Cost [Member] | Financial assets under IFRIC 12 [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 891,757   936,837
Cost [Member] | Financial assets under IFRS 16 lessor [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 2,895   2,941
Cost [Member] | Intangible assets under IFRIC 12 [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 9,292,599   9,467,309
Cost [Member] | Intangible assets under IFRS 16 lessee [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 78,781   66,230
Cost [Member] | Other intangible assets [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 21,467   13,800
Cost [Member] | Property, plant and equipment [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 837,960   336,920
Amortization and Impairment [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets (2,951,542)   (2,668,619)
Amortization and Impairment [Member] | Financial assets under IFRIC 12 [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets (64,076)   (87,689)
Amortization and Impairment [Member] | Financial assets under IFRS 16 lessor [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets 0   0
Amortization and Impairment [Member] | Intangible assets under IFRIC 12 [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets (2,706,477)   (2,442,520)
Amortization and Impairment [Member] | Intangible assets under IFRS 16 lessee [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets (12,602)   (10,060)
Amortization and Impairment [Member] | Other intangible assets [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets (7,269)   (6,111)
Amortization and Impairment [Member] | Property, plant and equipment [Member]      
Contracted Concessional Assets [Abstract]      
Contracted concessional assets $ (161,118)   $ (122,240)