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Long-Term Debt and Financing Arrangements (Tables) | 12 Months Ended
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Dec. 31, 2014
Debt Disclosure [Abstract] |
Schedule of Outstanding Debt | Our outstanding debt is as follows (in thousands):
| Period Ended |
| December 31, |  |  | December 31, |
| 2014 |  |  | 2013 |
Secured Equipment Notes due in December 2019 with monthly principal and interest payments of $0.2 million commencing in January 2015; interest is paid monthly at a fixed annual rate of 2.24% | $ | 13,387 |  |  | $ | - |
Secured Equipment Notes due in November 2019 with monthly principal and interest payments of $0.5 million commencing in December 2014; interest is paid monthly at a fixed annual rate of 2.05% |  | 28,429 |  |  |  | - |
Secured Equipment Notes due in September 2019 with monthly principal and interest payments of $0.4 million commencing in September 2014; interest is paid monthly at a fixed annual rate of 2.15% |  | 22,772 |  |  |  | - |
Secured Equipment Notes due in February 2019 with monthly principal and interest payments of $0.4 million commencing in January 2014; interest is paid monthly at a fixed annual rate between 1.87% and 1.93% |  | 21,016 |  |  |  | - |
Secured Equipment Notes due in June 2018 with quarterly principal and interest payments of $0.5 million commencing in August 2013; interest is paid quarterly at a fixed annual rate between 1.9% and 2.0% |  | 6,475 |  |  |  | 8,246 |
|  | 92,079 |  |  |  | 8,246 |
Less current portion |  | (19,619 | ) |  |  | (1,771 | )
Total long-term debt | $ | 72,460 |  |  | $ | 6,475 |
Summary of Aggregate Principal Payments | Aggregate principal payments, in thousands, due subsequent to December 31, 2014, are as follows:
2015 | $ | 19,619 |
2016 |  | 20,023 |
2017 |  | 20,209 |
2018 |  | 19,668 |
2019 |  | 12,560 |
| $ | 92,079 |

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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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