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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2016
Supplemental Cash Flow Elements [Abstract] |
Schedule of Cash Flow, Supplemental Disclosures | The Corporation's cash payments for interest and income taxes and non-cash investing and financing activities are as follows:
(In thousands) | 2016 |  |  | 2015 |  |  | 2014 |
Cash paid for: |  |  |  |  |
Interest paid (net of capitalized interest) |  | $6,644 |  |  |  | $7,066 |  |  |  | $8,301 |
Income taxes paid | 23,120 |  |  | 28,252 |  |  | 36,637 |
Changes in accrued expenses due to: |  |  |  |  |
Purchases of property and equipment | 3,599 |  |  | (327 | ) |  | 3,873 |
Purchases of capitalized software | 603 |  |  | (2,806 | ) |  | 2,183 |

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