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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract] |
Goodwill / Tradename |
(Table only in thousands) |  | Energy Segment |  |  | Environmental Segment |  |  | Fluid Handling and Filtration Segment |  |  | Totals |
Balance of goodwill at December 31, 2015 |  | $ | 72,075 |  |  | $ | 55,031 |  |  | $ | 93,057 |  |  | $ | 220,163 |
2016 acquisition related adjustments |  |  | 4,205 |  |  |  | — |  |  |  | — |  |  |  | 4,205 |
Impairment charge |  |  | — |  |  |  | (6,828 | ) |  |  | (46,934 | ) |  |  | (53,762 | )
Foreign currency translation |  |  | (453 | ) |  |  | — |  |  |  | — |  |  |  | (453 | )
Balance of goodwill at December 31, 2016 |  |  | 75,827 |  |  |  | 48,203 |  |  |  | 46,123 |  |  |  | 170,153 |
Impairment charge |  |  | (4,443 | ) |  |  | — |  |  |  | — |  |  |  | (4,443 | )
Foreign currency translation |  |  | 1,241 |  |  |  | — |  |  |  | — |  |  |  | 1,241 |
Balance of goodwill at December 31, 2017 |  | $ | 72,625 |  |  | $ | 48,203 |  |  | $ | 46,123 |  |  | $ | 166,951 |
|  | Tradenames |
(Table only in thousands) |  | 2017 |  |  | 2016 |
Beginning balance |  | $ | 22,042 |  |  | $ | 26,337 |
Impairment charge |  |  | (2,725 | ) |  |  | (4,161 | )
Foreign currency adjustments |  |  | 374 |  |  |  | (134 | )
Total indefinite lived intangible assets |  | $ | 19,691 |  |  | $ | 22,042 |
Summary of Finite Lived Intangible Assets | The Company’s finite lived intangible assets as of December 31, 2017 and 2016 consisted of the following:
|  | 2017 |  |  | 2016 |
(Table only in thousands) Intangible assets – finite life |  | Cost |  |  | Accum. Amort. |  |  | Cost |  |  | Accum. Amort. |
Technology |  | $ | 15,867 |  |  | $ | 8,609 |  |  | $ | 15,867 |  |  | $ | 6,360 |
Customer lists |  |  | 77,497 |  |  |  | 35,024 |  |  |  | 77,497 |  |  |  | 26,041 |
Noncompetition agreements |  |  | 1,118 |  |  |  | 698 |  |  |  | 1,118 |  |  |  | 478 |
Tradename |  |  | 1,390 |  |  |  | 440 |  |  |  | 1,390 |  |  |  | 301 |
Foreign currency adjustments |  |  | (1,214 | ) |  |  | (69 | ) |  |  | (2,964 | ) |  |  | (1,000 | )
Total finite life intangible assets |  | $ | 94,658 |  |  | $ | 44,702 |  |  | $ | 92,908 |  |  | $ | 32,180 |

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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=66006027&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=66006027&loc=d3e16265-109275 + Details
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