v3.22.0.1
Financial instruments by category, Reconciliation to statement of financial position (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
mi
Dec. 31, 2020
USD ($)
Financial Assets [Abstract]    
Financial assets $ 1,233,820 $ 1,490,073
Financial Liabilities [Abstract]    
Financial liabilities 6,396,624 6,658,891
Corporate Debt [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 1,023,071 993,725
Project Debt [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 5,036,193 5,237,614
Related Parties - Non-current [Member]    
Financial Liabilities [Abstract]    
Financial liabilities   6,810
Trade and Other Current Liabilities [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 113,907 92,557
Derivative Liabilities [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 223,453 328,184
Derivative Liabilities [Member]    
Financial Assets [Abstract]    
Financial assets 12,960 1,559
Investment in Ten West Link [Member]    
Financial Assets [Abstract]    
Financial assets $ 14,459 12,896
Percentage of interest acquired 12.50%  
Length of transmission lines | mi 114  
Investment in Rioglass [Member]    
Financial Assets [Abstract]    
Financial assets   $ 2,687
Percentage of interest acquired   15.12%
Financial Assets under IFRIC 12 (Short-term Portion) [Member]    
Financial Assets [Abstract]    
Financial assets $ 188,912 $ 178,198
Trade and Other Receivables [Member]    
Financial Assets [Abstract]    
Financial assets 307,143 331,735
Cash and Cash Equivalents [Member]    
Financial Assets [Abstract]    
Financial assets 622,689 868,501
Other Financial Investments [Member]    
Financial Assets [Abstract]    
Financial assets 87,657 94,497
Amortized Cost [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 6,173,171 6,330,707
Amortized Cost [Member] | Corporate Debt [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 1,023,071 993,725
Amortized Cost [Member] | Project Debt [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 5,036,193 5,237,614
Amortized Cost [Member] | Related Parties - Non-current [Member]    
Financial Liabilities [Abstract]    
Financial liabilities   6,810
Amortized Cost [Member] | Trade and Other Current Liabilities [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 113,907 92,557
Amortized Cost [Member] | Derivative Liabilities [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 0 0
Fair Value Through Profit or Loss [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 223,453 328,184
Fair Value Through Profit or Loss [Member] | Corporate Debt [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 0 0
Fair Value Through Profit or Loss [Member] | Project Debt [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 0 0
Fair Value Through Profit or Loss [Member] | Related Parties - Non-current [Member]    
Financial Liabilities [Abstract]    
Financial liabilities   0
Fair Value Through Profit or Loss [Member] | Trade and Other Current Liabilities [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 0 0
Fair Value Through Profit or Loss [Member] | Derivative Liabilities [Member]    
Financial Liabilities [Abstract]    
Financial liabilities 223,453 328,184
Amortized Cost [Member]    
Financial Assets [Abstract]    
Financial assets 1,206,401 1,472,931
Amortized Cost [Member] | Derivative Liabilities [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Amortized Cost [Member] | Investment in Ten West Link [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Amortized Cost [Member] | Investment in Rioglass [Member]    
Financial Assets [Abstract]    
Financial assets   0
Amortized Cost [Member] | Financial Assets under IFRIC 12 (Short-term Portion) [Member]    
Financial Assets [Abstract]    
Financial assets 188,912 178,198
Amortized Cost [Member] | Trade and Other Receivables [Member]    
Financial Assets [Abstract]    
Financial assets 307,143 331,735
Amortized Cost [Member] | Cash and Cash Equivalents [Member]    
Financial Assets [Abstract]    
Financial assets 622,689 868,501
Amortized Cost [Member] | Other Financial Investments [Member]    
Financial Assets [Abstract]    
Financial assets 87,657 94,497
Fair Value Through Other Comprehensive Income [Member]    
Financial Assets [Abstract]    
Financial assets 14,459 12,896
Fair Value Through Other Comprehensive Income [Member] | Derivative Liabilities [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Other Comprehensive Income [Member] | Investment in Ten West Link [Member]    
Financial Assets [Abstract]    
Financial assets 14,459 12,896
Fair Value Through Other Comprehensive Income [Member] | Investment in Rioglass [Member]    
Financial Assets [Abstract]    
Financial assets   0
Fair Value Through Other Comprehensive Income [Member] | Financial Assets under IFRIC 12 (Short-term Portion) [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Other Comprehensive Income [Member] | Trade and Other Receivables [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Other Comprehensive Income [Member] | Cash and Cash Equivalents [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Other Comprehensive Income [Member] | Other Financial Investments [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Profit or Loss [Member]    
Financial Assets [Abstract]    
Financial assets 12,960 4,246
Fair Value Through Profit or Loss [Member] | Derivative Liabilities [Member]    
Financial Assets [Abstract]    
Financial assets 12,960 1,559
Fair Value Through Profit or Loss [Member] | Investment in Ten West Link [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Profit or Loss [Member] | Investment in Rioglass [Member]    
Financial Assets [Abstract]    
Financial assets   2,687
Fair Value Through Profit or Loss [Member] | Financial Assets under IFRIC 12 (Short-term Portion) [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Profit or Loss [Member] | Trade and Other Receivables [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Profit or Loss [Member] | Cash and Cash Equivalents [Member]    
Financial Assets [Abstract]    
Financial assets 0 0
Fair Value Through Profit or Loss [Member] | Other Financial Investments [Member]    
Financial Assets [Abstract]    
Financial assets $ 0 $ 0