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Debt (Tables) | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Short-term and Long-term Debt | Debt outstanding at December 31, consisted of the following:
| 2017 |  | 2016
Long-Term Debt: |  |  |  |  |
Senior Unsecured Notes | $ | 300,000 |  |  | $ | — |
Credit Facility Borrowings | 80,000 |  |  | 36,143 |
Capital Lease Obligations | 3,279 |  |  | 51 |
Total Long-Term Debt | 383,279 |  |  | 36,194 |
Less: Unamortized Debt Issuance Costs | (6,440 | ) |  | — |
Less: Current Maturities of Credit Facility Borrowings, Net of Debt Issuance Costs(1) | (29,413 | ) |  | (3,459 | )
Less: Current Maturities of Capital Lease Obligations(1) | (1,470 | ) |  | — |
Long-term portion | $ | 345,956 |  |  | $ | 32,735 |
(1) | Current maturities of long-term debt include $30,000 of current maturities, less $587 of unamortized debt issuance costs, under our 2017 Credit Agreement (defined below) and $1,470 of current maturities of capital lease obligations.
Aggregate maturities of outstanding debt including capital lease obligations | he aggregate maturities of our outstanding debt, including capital lease obligations as of December 31, 2017, are as follows:
2018 | $ | 6,609 |
2019 | 7,868 |
2020 | 9,921 |
2021 | 12,006 |
2022 | 46,875 |
Thereafter | 300,000 |
Total aggregate maturities | $ | 383,279 |

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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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