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Business Combination, Goodwill and Intangibles - Intangibles (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]      
Total finite and indefinite-lived intangible assets, gross $ 11,070   $ 11,070
Accumulated amortization (3,489)   (3,174)
Intangible assets, net (excluding goodwill) 7,581   7,896
Amortization of Intangible Assets $ 315 $ 169  
Tradename      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, useful life (in years) 7 years    
Finite-lived intangible assets, gross $ 555   555
Patents and technological know-how      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, gross 5,850   5,850
Proprietary Software [Member]      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, gross $ 4,341   4,341
Other      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, useful life (in years) 5 years    
Finite-lived intangible assets, gross $ 324   $ 324
Minimum [Member] | Computer Software, Intangible Asset [Member]      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, useful life (in years) 3 years    
Minimum [Member] | Tradename      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, useful life (in years) 5 years    
Maximum [Member] | Computer Software, Intangible Asset [Member]      
Goodwill and Intangible Assets Disclosure [Abstract]      
Finite-lived intangible assets, useful life (in years) 15 years