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Long-term investments - Additional Information (Detail)
$ in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Aug. 12, 2021
USD ($)
Dec. 09, 2020
$ / instrument
May 31, 2020
shares
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
windProject
Dec. 31, 2021
USD ($)
$ / MWh
Dec. 31, 2020
USD ($)
Nov. 30, 2021
USD ($)
Jan. 07, 2021
USD ($)
shares
May 31, 2019
USD ($)
May 31, 2019
CAD ($)
May 24, 2019
USD ($)
Schedule of Equity Method Investments [Line Items]                        
Equity method investments           $ 433,850 $ 186,452          
Non-controlling interests           1,523,082 458,612          
Fair value loss           (122,419) 559,701          
Investments carried at fair value           1,848,456 1,839,212          
Noncontrolling interest in partnerships and joint ventures           433,850 186,452          
Fair value of support provided           4,612 12,273          
Variable Interest Entity, Not Primary Beneficiary                        
Schedule of Equity Method Investments [Line Items]                        
Net assets           86,202 174,685          
Development loans receivable from equity-method investees           $ 31,468 $ 21,804          
Abengoa                        
Schedule of Equity Method Investments [Line Items]                        
Option to purchase interest in joint venture       $ 1,500                
Atlantica                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)           44.00% 44.00%          
Equity method investments           $ 1,167,444     $ 132,688      
Equity method investment, shares acquired (shares) | shares                 4,020,860      
Fair value loss           (107,030) $ 519,297          
Investments carried at fair value           $ 1,750,914 1,706,900          
Atlantica | Subscription Share Purchase Agreement                        
Schedule of Equity Method Investments [Line Items]                        
Subscription purchase agreement, share price (in USD) | $ / instrument   33.00                    
Atlantica | Maximum                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)           48.50%            
Atlantica Yield Energy Solutions Canada Inc. (b)                        
Schedule of Equity Method Investments [Line Items]                        
Non-controlling interests           $ 41,782 59,125     $ 96,752    
Option to exchange shares | shares     3,500,000                  
Fair value loss           15,915 (20,272)          
Investments carried at fair value           $ 95,246 $ 110,514          
Atlantica Yield Energy Solutions Canada Inc. (b) | AIP                        
Schedule of Equity Method Investments [Line Items]                        
Non-controlling interests                   $ 96,752 $ 130,103 $ 96,752
Red Lily I                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)           75.00%            
Wind facility capacity (megawatt AC) | $ / MWh           26.4            
Val Eo                        
Schedule of Equity Method Investments [Line Items]                        
Equity economic interest           50.00%            
Wind facility capacity (megawatt AC) | $ / MWh           24            
Wind And Solar Power Electric Development                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)           50.00%            
North Fork Ridge Wind Facility                        
Schedule of Equity Method Investments [Line Items]                        
Equity method investment acquired (percent)           50.00%            
New Market Solar                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)           50.00%            
Net assets contributed into joint venture entities           $ 220,677            
Contract asset           17,018            
Equity method investment, gain on transfer           26,182            
Loans related to parties           $ 10,779            
Texas Wind Farms                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)         51.00%              
Equity method investments $ 110,609       $ 234,274              
Equity method investment acquired (percent) 51.00%       51.00%              
Number of wind development projects acquired | windProject         3              
Number of wind development projects | windProject         4              
San Antonio Water System, Joint Venture                        
Schedule of Equity Method Investments [Line Items]                        
Equity interest (percent)           20.00%            
Liberty Development JV Inc                        
Schedule of Equity Method Investments [Line Items]                        
Equity method investments               $ 19,688        
Non-controlling interests               39,376        
AAGES Spain                        
Schedule of Equity Method Investments [Line Items]                        
Acquired assets       2,662                
Working capital       1,507                
AAGES Spain | Abengoa                        
Schedule of Equity Method Investments [Line Items]                        
Loans related to parties       $ 3,089                
AY Holdco                        
Schedule of Equity Method Investments [Line Items]                        
Equity method investments               $ 39,376