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Supplemental Cash Flow Information (Tables) | 3 Months Ended
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Mar. 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.
| Three Months Ended March 31,
| 2015 |  | 2014
(Increase) decrease in: |  |  |
Accounts receivable | $ | 70,903 |  |  | $ | 60,046 |
Inventories | (16,973 | ) |  | (11,700 | )
Deferred charges | (3,103 | ) |  | — |
Other current assets | (4,722 | ) |  | 41,623 |
Increase (decrease) in: |  |  |
Accounts payable | (37,826 | ) |  | (1,867 | )
Accrued liabilities | (2,343 | ) |  | (35,184 | )
Net changes in components of operating assets and liabilities | 5,936 |  |  | 52,918 |

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