Grants and other liabilities (Details) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2021
USD ($)
Type
|
Mar. 31, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
|
|
| Grants and other liabilities [Abstract] | |||
| Grants | $ 1,013,954 | $ 1,028,765 | |
| Other Liabilities | 185,731 | 201,002 | |
| Grants and other non-current liabilities | $ 1,199,685 | 1,229,767 | |
| Number of grant types | Type | 2 | ||
| Income from grants | $ 14,715 | $ 14,751 | |
| Finance lease liabilities | 49,000 | 52,000 | |
| Dismantling provision | 88,000 | 88,000 | |
| Solana and Mojave [Member] | |||
| Grants and other liabilities [Abstract] | |||
| Income from grants | 14,700 | $ 14,800 | |
| U.S. Department of Treasury [Member] | |||
| Grants and other liabilities [Abstract] | |||
| Grants | 666,000 | 674,000 | |
| Federal Financing Bank [Member] | |||
| Grants and other liabilities [Abstract] | |||
| Grants | $ 346,000 | $ 352,000 | |