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Short-Term Debt, Long-Term Debt and Convertible Notes (Tables) | 3 Months Ended
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Mar. 31, 2013
Debt Disclosure [Abstract] |
Schedule of Debt [Table Text Block] | Debt consists of:
|  | March 31, |  |  | December 31, |
|  | 2013 |  |  | 2012 |
Revolving credit agreement |  | $ | — |  |  | $ | — |
6.75% Senior Notes due 2020 |  |  | 550,000 |  |  |  | — |
11% Senior Notes due 2016 |  |  | — |  |  |  | 425,000 |
Original issue premium |  |  | — |  |  |  | 4,193 |
Notes payable and other bank loans |  |  | 917 |  |  |  | 1,385 |
|  |  | 550,917 |  |  |  | 430,578 |
Obligations under capital leases |  |  | 964 |  |  |  | 1,125 |
|  |  | 551,881 |  |  |  | 431,703 |
Less current portion: |  |  | 1,337 |  |  |  | 1,858 |
|  | $ | 550,544 |  |  | $ | 429,845 |

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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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