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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2016
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,
| 2016 |  | 2015
(Increase) decrease in: |  |  |
Accounts receivable | $ | 11,029 |  |  | $ | 72,372 |
Inventories | (26,215 | ) |  | (1,481 | )
Deferred charges | (5,291 | ) |  | (7,256 | )
Other current assets | 5,184 |  |  | (7,014 | )
Increase (decrease) in: |  |  |
Accounts payable | (27,213 | ) |  | (70,980 | )
Accrued liabilities | (20,901 | ) |  | 21,740 |
Net changes in components of operating assets and liabilities | (63,407 | ) |  | 7,381 |

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