Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details Textuals)

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Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details Textuals) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options $ 1,100,000   $ 1,100,000  
Amortization     4,670,000  
Goodwill, Impairment Loss     $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term     1 year 5 months 10 days  
Allocated Share-based Compensation Expense 5,102,000 $ 4,794,000 $ 10,211,000 $ 8,513,000
Assets, Total [Member]        
Amortization $ 2,600,000 $ 9,200,000 4,700,000 $ 9,400,000
Finite-Lived Intangible Assets [Member]        
Transfers into developed technology from IPR&D     0  
Indefinite-lived Intangible Assets [Member]        
Impairment of Intangible Assets (Excluding Goodwill)     0  
Indefinite-lived Intangible Assets [Member] | Indefinite-lived Intangible Assets [Member]        
Transfers into developed technology from IPR&D     $ 0