Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets Intangible Assets (Details)

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Goodwill and Intangible Assets Intangible Assets (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]  
Intangible Assets, Gross (Excluding Goodwill) $ 21,970
Impairment of Intangible Assets, Finite-lived (596)
Finite-Lived Intangible Assets, Accumulated Amortization (12,904)
Finite-Lived Intangible Assets, Net $ 8,470
Developed Technology Rights [Member]  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Asset, Useful Life 6 years
Intangible Assets, Gross (Excluding Goodwill) $ 11,630
Impairment of Intangible Assets, Finite-lived 0
Finite-Lived Intangible Assets, Accumulated Amortization 4,362
Finite-Lived Intangible Assets, Net $ 7,268
Customer Relationships [Member]  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Asset, Useful Life 3 years
Intangible Assets, Gross (Excluding Goodwill) $ 5,400
Impairment of Intangible Assets, Finite-lived (264)
Finite-Lived Intangible Assets, Accumulated Amortization 5,136
Finite-Lived Intangible Assets, Net $ 0
Trademarks and Trade Names [Member]  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Asset, Useful Life 5 years
Intangible Assets, Gross (Excluding Goodwill) $ 4,940
Impairment of Intangible Assets, Finite-lived (332)
Finite-Lived Intangible Assets, Accumulated Amortization 3,406
Finite-Lived Intangible Assets, Net $ 1,202