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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract] |
Supplemental Cash Flow Information | Supplemental cash flow information is as follows:
| Years Ended December 31,
| 2017 |  | 2016 |  | 2015
|  |  | (In thousands) |  |
Income tax refunds received | $ | 5,031 |  |  | $ | 3,838 |  |  | $ | 4,068 |
Income taxes paid | (35,893 | ) |  | (26,587 | ) |  | (24,960 | )
Interest paid, net of amount capitalized | (79,047 | ) |  | (87,076 | ) |  | (91,496 | )

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