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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2015
Supplemental Cash Flow Elements [Abstract] |
Additional Information Relating to Cash Flow Activities | The following provides additional information relating to cash flow activities:
|  | Nine Months Ended September 30, |
|  | 2015 |  |  | 2014 |
|  | (In Thousands) |
Cash payments (refunds) for income taxes, net |  | $ | (3,648 | ) |  | $ | (4,864 | )
Noncash investing and financing activities: |  |  |  |  |  |  |  |
Accounts payable, accrued liabilities and long-term debt associated with additions of property, plant and equipment |  | $ | 59,566 |  |  | $ | 23,017 |
Long-term debt associated with additions of capitalized internal-use software and software development |  | $ | 3,082 |  |  | $ | 4,256 |

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