v3.20.4

Corporate debt, Repayment schedule (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Repayment schedule [Abstract] |  |  |
Corporate debt | $ 993,725 | $ 723,791 | $ 684,073
2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 28,706 |
2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 23,648 | 18,023 |
2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 182,481 |
2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 2,036 | 100,513 |
2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 2,036 | 100,413 |
2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 448,133 |  |
Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 517,872 | 293,655 |
Revolving Credit Facility [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 81,865 |
Revolving Credit Facility [Member] | 2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 701 |
Revolving Credit Facility [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
Revolving Credit Facility [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 81,164 |
Revolving Credit Facility [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
Revolving Credit Facility [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
Revolving Credit Facility [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
Note Issuance Facility 2017 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 302,327 |
Note Issuance Facility 2017 [Member] | 2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 84 |
Note Issuance Facility 2017 [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
Note Issuance Facility 2017 [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 101,317 |
Note Issuance Facility 2017 [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 100,513 |
Note Issuance Facility 2017 [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 100,413 |
Note Issuance Facility 2017 [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
2017 Credit Facility [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 41 | 10,089 |
2017 Credit Facility [Member] | 2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 4 |
2017 Credit Facility [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 41 | 10,085 |
2017 Credit Facility [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
2017 Credit Facility [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
2017 Credit Facility [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
2017 Credit Facility [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2017 Credit Facility [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Note Issuance Facility 2019 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 343,999 | 301,593 |
Note Issuance Facility 2019 [Member] | 2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 0 |
Note Issuance Facility 2019 [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 7,938 |
Note Issuance Facility 2019 [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Note Issuance Facility 2019 [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Note Issuance Facility 2019 [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Note Issuance Facility 2019 [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 343,999 |  |
Note Issuance Facility 2019 [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 293,655 |
Commercial Paper [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 21,224 | 27,917 |
Commercial Paper [Member] | 2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt |  | 27,917 |
Commercial Paper [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 21,224 | 0 |
Commercial Paper [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Commercial Paper [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Commercial Paper [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | 0 |
Commercial Paper [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Commercial Paper [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 | $ 0 |
2020 Green Private Placement [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 351,315 |  |
2020 Green Private Placement [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 289 |  |
2020 Green Private Placement [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2020 Green Private Placement [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2020 Green Private Placement [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2020 Green Private Placement [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2020 Green Private Placement [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 351,026 |  |
Note Issuance Facility 2020 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 166,846 |  |
Note Issuance Facility 2020 [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Note Issuance Facility 2020 [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Note Issuance Facility 2020 [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Note Issuance Facility 2020 [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Note Issuance Facility 2020 [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Note Issuance Facility 2020 [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 166,846 |  |
Green Exchangeable Notes [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 104,227 |  |
Green Exchangeable Notes [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 2,083 |  |
Green Exchangeable Notes [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Green Exchangeable Notes [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Green Exchangeable Notes [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
Green Exchangeable Notes [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 102,144 |  |
Green Exchangeable Notes [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2020 Credit Facility [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 6,073 |  |
2020 Credit Facility [Member] | 2021 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 11 |  |
2020 Credit Facility [Member] | 2022 [member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 0 |  |
2020 Credit Facility [Member] | 2023 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 2,036 |  |
2020 Credit Facility [Member] | 2024 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 2,036 |  |
2020 Credit Facility [Member] | 2025 [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | 1,990 |  |
2020 Credit Facility [Member] | Subsequent Years [Member] |  |  |
Repayment schedule [Abstract] |  |  |
Corporate debt | $ 0 |  |

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