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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2018
Goodwill And Other Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Weighted |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Average |
|  | December 31, 2018 |  |  |  | December 31, 2017 |  | Life | (a)
|  | (in thousands) |  |  |
Amortizable intangible assets: |  | Gross |  |  | Accumulated Amortization |  |  |  | Gross |  |  | Accumulated Amortization |  |  |
Existing technology | $ | 41,268 |  | $ | (16,215) |  |  | $ | 16,173 |  | $ | (13,179) |  | 7.1 | Years
Trade names |  | 7,828 |  |  | (2,861) |  |  |  | 4,443 |  |  | (2,280) |  | 7.7 | Years
Distribution agreements/customer relationships |  | 22,657 |  |  | (9,509) |  |  |  | 13,197 |  |  | (8,373) |  | 10.6 | Years
In-process research and development |  | 1,387 |  |  | (30) |  |  |  | - |  |  | - |  | 7.3 | Years
Patents |  | 211 |  |  | (204) |  |  |  | 223 |  |  | (174) |  | 0.2 | Years
Total amortizable intangible assets |  | 73,351 |  | $ | (28,819) |  |  |  | 34,036 |  | $ | (24,006) |  |  |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 57,304 |  |  |  |  |  |  | 36,336 |  |  |  |  |  |
Other indefinite-lived intangible assets |  | 1,232 |  |  |  |  |  |  | 1,244 |  |  |  |  |  |
Total goodwill and other indefinite-lived intangible assets |  | 58,536 |  |  |  |  |  |  | 37,580 |  |  |  |  |  |
Total intangible assets, gross | $ | 131,887 |  |  |  |  |  | $ | 71,616 |  |  |  |  |  |
(a) Weighted average life as of December 31, 2018. |
Goodwill Rollforward [Table Text Block] |
|  |  | (in thousands) |  |  |
Balance at December 31, 2016 | $ | 38,032 |  |  |
| Effect of change in currency translation |  | 1,937 |  |  |
| Reclassification of goodwill as held for sale |  | (3,633) |  |  |
Balance at December 31, 2017 | $ | 36,336 |  |  |
| Goodwill arising from business combination |  | 21,865 |  |  |
| Effect of change in currency translation |  | (897) |  |  |
Balance at December 31, 2018 | $ | 57,304 |  |  |

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