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) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]    
Indefinite-lived Intangible Assets, Written off Related to Sale of Business Unit   $ 600
Amortization of Intangible Assets $ (596)  
Intangible Assets, Gross (Excluding Goodwill) 21,970  
Finite-Lived Intangible Assets, Accumulated Amortization (10,714)  
Finite-Lived Intangible Assets, Net $ 10,660  
Developed Technology Rights [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 6 years  
Amortization of Intangible Assets $ 0  
Intangible Assets, Gross (Excluding Goodwill) 11,630  
Finite-Lived Intangible Assets, Accumulated Amortization (2,908)  
Finite-Lived Intangible Assets, Net $ 8,722  
Customer Relationships [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 3 years  
Amortization of Intangible Assets $ (264)  
Intangible Assets, Gross (Excluding Goodwill) 5,400  
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  
Amortization of Intangible Assets $ (332)  
Intangible Assets, Gross (Excluding Goodwill) 4,940  
Finite-Lived Intangible Assets, Accumulated Amortization (2,670)  
Finite-Lived Intangible Assets, Net $ 1,938