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Debt (Tables) | 12 Months Ended
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Dec. 31, 2015
Debt Disclosure [Abstract] |
Debt [Table Text Block] | Long-term debt consisted of the following:
|  | December 31, 2015 |  | December 31, 2014
|  | (thousands)
Asset-based revolving credit facility |  | $ | — |  |  | $ | — |
Term loan |  | 50,000 |  |  | — |
6.375% senior notes |  | 299,990 |  |  | 299,990 |
Unamortized premium on 6.375% senior notes |  | 1,215 |  |  | 1,425 |
Deferred financing costs |  | (6,616 | ) |  | (7,149 | )
Long-term debt |  | $ | 344,589 |  |  | $ | 294,266 |
Schedule of Maturities of Long-term Debt [Table Text Block] | At December 31, 2015, the maturities for the aggregate amount of long-term debt outstanding were as follows (in thousands):
2016 |  | $ | — |
2017 |  | — |
2018 |  | — |
2019 |  | — |
2020 |  | 299,990 |
Thereafter |  | 50,000 |

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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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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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