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Supplemental cash flow information (Tables) | 9 Months Ended
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Sep. 30, 2016
Supplemental Cash Flow Elements [Abstract] |
Supplemental cash flow information |
| Nine months ended September 30,
| 2016 | 2015
Cash paid for: |  |
Interest | $ | 9,893 |  | $ | 9,396 |
Income taxes | 10,245 |  | 13,921 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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- References No definition available. + Details
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