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Supplemental Cash Flow Disclosures (Tables) | 12 Months Ended
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Dec. 31, 2016
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, 2016, 2015 and 2014 were as follows (in thousands):
|  | 2016 |  |  | 2015 |  |  | 2014 |
Interest |  | $ | 6,019 |  |  | $ | 7,986 |  |  | $ | 9,268 |
Income taxes |  | $ | 19,314 |  |  | $ | 23,558 |  |  | $ | 18,277 |

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