Project debt, Details of project debt (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2021 |
Dec. 31, 2020 |
|
| Project debt [Abstract] | ||
| Cash held to satisfy non-recourse debt agreements | $ 292,000 | $ 280,000 |
| Non-current | 4,678,849 | 4,925,268 |
| Current | 695,341 | 312,346 |
| Total Project debt | 5,374,190 | $ 5,237,614 |
| Increase in project debt during period | 322,000 | |
| Kaxu [Member] | ||
| Project debt [Abstract] | ||
| Current | $ 359,000 |