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Goodwill and Intangible Assets, Net - Components of Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 62,924 | $ 61,766
Accumulated amortization | (38,554) | (32,725)
Intangible assets, net | 24,370 | 29,041
Gross value of fully amortized intangible assets | $ 7,100 | 6,000
Minimum |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Estimated useful life of intangible assets | 1 year |
Maximum |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Estimated useful life of intangible assets | 15 years |
Distribution rights (10 years) |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 329 | 344
Accumulated amortization | (188) | (165)
Intangible assets, net | $ 141 | 179
Estimated useful life of intangible assets | 10 years |
Patents (10 years) |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 14,560 | 13,250
Accumulated amortization | (5,704) | (5,310)
Intangible assets, net | $ 8,856 | 7,940
Estimated useful life of intangible assets | 10 years |
Trademark and trade names |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 2,786 | 2,786
Accumulated amortization | (1,900) | (1,594)
Intangible assets, net | $ 886 | 1,192
Estimated useful life of intangible assets | 10 years |
Developed and core technology (5-15 years) |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 12,560 | 12,560
Accumulated amortization | (8,087) | (6,071)
Intangible assets, net | $ 4,473 | 6,489
Developed and core technology (5-15 years) | Minimum |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Estimated useful life of intangible assets | 5 years |
Developed and core technology (5-15 years) | Maximum |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Estimated useful life of intangible assets | 15 years |
Capitalized software development costs (2 years) |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 155 | 142
Accumulated amortization | 0 | (77)
Intangible assets, net | $ 155 | 65
Estimated useful life of intangible assets | 2 years |
Customer relationships |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 32,534 | 32,534
Accumulated amortization | (22,675) | (19,395)
Intangible assets, net | $ 9,859 | 13,139
Customer relationships | Minimum |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Estimated useful life of intangible assets | 10 years |
Customer relationships | Maximum |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Estimated useful life of intangible assets | 15 years |
Order backlog |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross | $ 0 | 150
Accumulated amortization | 0 | (113)
Intangible assets, net | $ 0 | $ 37
Estimated useful life of intangible assets | 1 year |

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