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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract] |
Goodwill / Tradename |
(Table only in thousands) |  | Three months ended March 31, 2016 |  |  | Year ended December 31, 2015 |
Goodwill / Tradename |  | Goodwill |  |  | Tradename |  |  | Goodwill |  |  | Tradename |
Beginning balance |  | $ | 220,163 |  |  | $ | 26,337 |  |  | $ | 165,861 |  |  | $ | 19,766 |
Acquisitions and related adjustments |  |  | 1,130 |  |  |  | — |  |  |  | 55,655 |  |  |  | 10,280 |
Impairment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,340 | )
Foreign currency translation |  |  | 424 |  |  |  | 121 |  |  |  | (1,353 | ) |  |  | (369 | )
|  | $ | 221,717 |  |  | $ | 26,458 |  |  | $ | 220,163 |  |  | $ | 26,337 |
Intangible Assets - Finite Life |
(Table only in thousands) |  | As of March 31, 2016 |  |  | As of December 31, 2015 |
Intangible assets – finite life |  | Cost |  |  | Accum. Amort. |  |  | Cost |  |  | Accum. Amort. |
Patents |  | $ | 1,439 |  |  | $ | 1,439 |  |  | $ | 1,456 |  |  | $ | 1,456 |
Employment agreements |  |  | 733 |  |  |  | 733 |  |  |  | 733 |  |  |  | 677 |
Technology |  |  | 15,867 |  |  |  | 4,628 |  |  |  | 15,867 |  |  |  | 4,027 |
Customer lists |  |  | 77,497 |  |  |  | 19,906 |  |  |  | 77,497 |  |  |  | 17,756 |
Noncompetition agreements |  |  | 1,118 |  |  |  | 311 |  |  |  | 1,118 |  |  |  | 257 |
Tradename |  |  | 1,390 |  |  |  | 197 |  |  |  | 1,390 |  |  |  | 162 |
Backlog |  |  | 4,270 |  |  |  | 2,491 |  |  |  | 4,270 |  |  |  | 1,423 |
Foreign currency adjustments |  |  | (1,818 | ) |  |  | (525 | ) |  |  | (2,309 | ) |  |  | (693 | )
|  | $ | 100,496 |  |  | $ | 29,180 |  |  | $ | 100,022 |  |  | $ | 25,065 |
Summary of Finite Lived Intangible Assets Activities | Activity for the three months ended March 31, 2016 and 2015 is as follows:
(Table only in thousands) |  | 2016 |  |  | 2015 |
Intangible assets – finite life, net at beginning of period |  | $ | 74,957 |  |  | $ | 58,398 |
Amortization expense |  |  | (3,935 | ) |  |  | (2,622 | )
Acquisitions/purchase accounting adjustments |  |  | — |  |  |  | — |
Foreign currency adjustments |  |  | 294 |  |  |  | (943 | )
Intangible assets – finite life, net at end of period |  | $ | 71,316 |  |  | $ | 54,833 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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