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Supplemental Cash Flow Disclosures (Tables) | 12 Months Ended
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Dec. 31, 2015
Supplemental Cash Flow Elements [Abstract] |
Cash Paid for Interest and Income Taxes | Cash paid for interest and income taxes during the years ended December 31, 2015, 2014 and 2013 were as follows (in thousands):
|  | 2015 |  |  | 2014 |  |  | 2013 |
Interest |  | $ | 7,986 |  |  | $ | 9,268 |  |  | $ | 10,783 |
Income taxes (1) |  | $ | 23,558 |  |  | $ | 18,277 |  |  | $ | 67,941 |
(1) | Approximately $47.5 million related to the gain on sale of MMP is included in cash paid for income taxes for the year ended December 31, 2013.

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