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Debt (Tables) | 12 Months Ended
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Dec. 31, 2016
Debt Disclosure [Abstract] |
Schedule of Debt [Table Text Block] | The components of our borrowings are as follows:
| December 31, 2016 |  | December 31, 2015
| (in thousands)
Credit Facilities |  |  |
USD denominated term loan | $ | 208,125 |  |  | $ | 219,375 |
Multicurrency revolving line of credit | 97,167 |  |  | 151,837 |
Total debt | 305,292 |  |  | 371,212 |
Less: current portion of debt | 14,063 |  |  | 11,250 |
Less: unamortized prepaid debt fees - term loan | 769 |  |  | 1,047 |
Long-term debt | $ | 290,460 |  |  | $ | 358,915 |
Schedule of Maturities of Long-term Debt [Table Text Block] | Required minimum principal payments on our outstanding credit facilities are as follows:
Year Ending December 31, |  | Minimum Payments
|  | (in thousands)
2017 |  | $ | 14,063 |
2018 |  | 19,687 |
2019 |  | 22,500 |
2020 |  | 249,042 |
2021 |  | — |
Total minimum payments on debt |  | $ | 305,292 |
Schedule of Long-Term Debt Repayments [Table Text Block] | Total credit facility repayments were as follows:
| Year Ended December 31,
| 2016 |  | 2015 |  | 2014
| (in thousands)
Term loan | $ | 11,250 |  |  | $ | 13,125 |  |  | $ | 26,250 |
Multicurrency revolving line of credit | 67,869 |  |  | 49,873 |  |  | 76,188 |
Total credit facility repayments | $ | 79,119 |  |  | $ | 62,998 |  |  | $ | 102,438 |

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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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