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Supplementary Cash Flow Information Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2020
Supplemental Cash Flow Elements [Abstract] |
Schedule of Cash and Cash Equivalents | Total cash, cash equivalents, restricted cash, and cash and restricted cash held for sale are as follows:
| September 30, 2020 |  | December 31, 2019 |  | September 30, 2019 |  | December 31, 2018
| $ |  | $ |  | $ |  | $
Cash and cash equivalents | 376,563 |  |  | 353,241 |  |  | 293,361 |  |  | 424,169 |
Restricted cash – current | 15,916 |  |  | 56,777 |  |  | 60,463 |  |  | 40,493 |
Restricted cash – non-current | 50,068 |  |  | 44,849 |  |  | 38,932 |  |  | 40,977 |
Assets held for sale – cash | — |  |  | 1,121 |  |  | — |  |  | — |
Assets held for sale – restricted cash | — |  |  | 337 |  |  | — |  |  | — |
| 442,547 |  |  | 456,325 |  |  | 392,756 |  |  | 505,639 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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- References No definition available. + Details
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