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Cash flow information (Tables) | 12 Months Ended
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Dec. 31, 2017
Supplemental Cash Flow Information [Abstract] |
Cash expenditures for interest and income taxes and noncash investing transactions | Cash expenditures for interest and income taxes for the years ended December 31 were as follows:
| 2017 |  | 2016 |  | 2015 |
|  | (In thousands) |  |
Interest, net* | $ | 79,638 |  | $ | 87,920 |  | $ | 88,775 |
Income taxes paid, net** | $ | 112,137 |  | $ | 105,908 |  | $ | 61,405 |
* | Capitalized interest and AFUDC - borrowed was $966,000, $914,000 and $9.3 million for the years ended December 31, 2017, 2016 and 2015, respectively.
** | Income taxes paid, net of discontinued operations, were $9.7 million, $1.3 million and $2.4 million for the years ended December 31, 2017, 2016 and 2015, respectively.
Noncash investing transactions at December 31 were as follows:
| 2017 |  | 2016 |  | 2015 |
|  | (In thousands) |  |
Property, plant and equipment additions in accounts payable | $ | 29,263 |  | $ | 22,712 |  | $ | 39,754 |

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