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Investments Investments (Tables) | 6 Months Ended
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Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract] |
Investments schedule [Table Text Block] |
(in thousands) | June 30, 2015 |  | December 31, 2014
Rabbi trust (associated with the Deferred Compensation Plan) | $ | 3,649 |  |  | $ | 3,678 |
Investments in equity securities | 16 |  |  | — |
Total | $ | 3,665 |  |  | $ | 3,678 |

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