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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2015
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:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
(Increase) decrease in: |  |  |  |  |
Accounts receivable | $ | 99,384 |  |  | $ | 95,014 |  |  | $ | (96,300 | )
Inventories | 3,811 |  |  | 38,501 |  |  | 1,720 |
Deferred charges | (11,916 | ) |  | (8,935 | ) |  | — |
Other current assets | 6,417 |  |  | 62,305 |  |  | (39,170 | )
Increase (decrease) in: |  |  |  |  |
Accounts payable | (101,581 | ) |  | (73,307 | ) |  | 41,718 |
Accrued liabilities | 9,257 |  |  | (35,624 | ) |  | 45,846 |
Net changes in components of operating assets and liabilities | $ | 5,372 |  |  | $ | 77,954 |  |  | $ | (46,186 | )

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