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Supplemental Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2015
Supplemental Cash Flow Elements [Abstract] |
Supplemental cash flow information | Supplemental cash flow information was as follows:
| Nine months ended September 30,
| 2015 |  | 2014
| (In thousands)
Interest paid | $ | 110,141 |  |  | 110,192 |
Income taxes paid | 13,635 |  |  | 9,878 |
Changes in accounts payable related to purchases of revenue earning equipment | 18,307 |  |  | 3,902 |
Operating and revenue earning equipment acquired under capital leases | 5,956 |  |  | 3,788 |

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