v3.21.1

Nature of the business, Assets acquired (Details) $ in Thousands |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2021 USD ($) MW | Apr. 07, 2021 USD ($) MW Grade | Jan. 08, 2021 USD ($) | Jan. 07, 2021 | Jan. 06, 2021 USD ($) MW | Apr. 03, 2020 USD ($) MW | Jan. 29, 2019 USD ($) | Oct. 31, 2020 USD ($) MW | Oct. 31, 2019 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) MW | Sep. 30, 2021 | Aug. 17, 2020 USD ($) | Aug. 16, 2020 USD ($) | May 31, 2020 | May 31, 2019 USD ($)
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  |  |  |  |  |  |  |  |  | $ 111,798 | $ 116,614 |  |  |  |  |
Acquisition, amount paid |  |  |  | $ 8,400 |  |  |  |  |  |  |  |  |  |  |  |  |
Solana [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Remaining period of PPA | [1] |  |  |  |  |  |  |  |  |  | 23 years |  |  |  |  |  |
Chile PV 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  |  |  |  |  | $ 4,000 |  |  |  |  |  |  |  |  |  |
Percentage interest acquired |  |  |  |  |  |  | 35.00% |  |  |  |  |  |  |  |  |  |
Installed capacity | MW |  |  |  |  |  |  | 55 |  |  |  |  |  |  |  |  |  |
Chile PV 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |  |
Installed capacity | MW |  |  |  |  |  | 40 |  |  |  |  |  |  |  |  |  |  |
Befesa Agua Tenes, S.L.U. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage interest acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51.00% |
Ownership interest |  |  |  |  |  |  |  | 51.00% |  |  |  |  |  |  |  |  |
Consideration payment advanced |  |  |  |  |  |  |  | $ 19,900 |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  | 12.00% |  |  |  |  |  |  |  |  |
Payment received through cash sweep mechanism |  |  |  |  |  |  |  |  |  | $ 7,800 |  |  |  |  |  |  |
Secured loan amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,500
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,000
Liberty Interactive Corporation [Member] | Solana [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 290,000 |  |  |
Acquisition purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 272,000 |  |
Period of annual net production of asset |  |  |  |  |  |  |  |  |  |  | 4 years |  |  |  |  |  |
Performance earn-out, period of highest annual net production of asset |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |
Calgary District Energy Center [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  |  |  |  |  |  |  | $ 20,000 |  |  |  |  |  |  |  |
Installed capacity | MW |  |  |  |  |  |  |  |  | 55 |  |  |  |  |  |  |  |
La Sierpe [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  |  |  |  |  |  |  |  |  |  | $ 20,000 |  |  |  |  |
Installed capacity | MW |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |
Rioglass [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage interest acquired |  |  |  | 42.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition, amount paid |  |  |  | $ 8,400 |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  | 57.50% | 15.00% |  |  |  |  |  |  |  |  |  |  |  |
Rioglass [Member] | Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage interest acquired |  |  |  |  |  |  |  |  |  |  |  |  | 42.50% |  |  |  |
Sale of ownership, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 42.50% |  |  |  |
Coso [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of PPA |  |  |  |  |  |  |  |  |  |  | 19 years |  |  |  |  |  |
Coso [Member] | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  | $ 130,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Installed capacity | MW |  |  | 135 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of investment grade investments | Grade |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Coso [Member] | Project Debt [Member] | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  |  | $ 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Omers [Member] | Subsequent Events [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment under the equity method |  | $ 196,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage interest acquired |  | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Installed capacity | MW |  | 596 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  | 51.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining period of PPA |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Algonquin [Member] | La Sierpe [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nature of the business [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Installed capacity | MW |  |  |  |  |  |  |  |  |  |  |  | 30 |  |  |  |  |
[1] | As of December 31, 2020.

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