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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2020
Supplemental Cash Flow Elements [Abstract] |
Net Changes In Components of Operating Assets and Liabilities | The following table provides information regarding the net changes in components of operating assets and liabilities.
| Nine Months Ended September 30,
| 2020 |  | 2019
(Increase) decrease in: |  |  |
Accounts receivable | $ | 165,505 |  |  | $ | 6,294 |
Inventories | (24,674) |  |  | 709 |
Deferred charges | 17,616 |  |  | 135 |
Other current assets | (1,620) |  |  | (10,358) |
Increase (decrease) in: |  |  |
Accounts payable | (59,477) |  |  | 46,530 |
Accrued liabilities | (25,204) |  |  | (48,954) |
Net changes in components of operating assets and liabilities | $ | 72,146 |  |  | $ | (5,644) |

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