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Debt (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2016
Debt Disclosure [Abstract] |
Summary of Indebtedness outstanding | Indebtedness outstanding was as follows:
|  | March 31, |  | December 31, |
|  | 2016 |  | 2015 |
Short-term debt: |  |  |  |  |  |  |
Bank Credit Facility, expires July 30, 2019 |  | $ | - |  | $ | - |
Long-term debt: |  |  |  |  |  |  |
4.50% Senior Notes, due December 1, 2025. Aggregate principal amount of $250,000 less unaccrued discount of $644 and $654 (4.5% imputed rate) and unamortized debt issuance costs of $2,334 and $2,371 |  |  | 247,022 |  |  | 246,975 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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