Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - 2015 Acquisitions (Details)

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Acquisitions - 2015 Acquisitions (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Business Acquisition [Line Items]            
Gain (loss) recognized due to change in fair value of cash consideration       $ (251,000) $ 493,000  
Indatus            
Business Acquisition [Line Items]            
Total purchase price $ 49,400,000          
Cash portion of purchase price 43,800,000          
Deferred cash payment amount related to acquisition $ 5,000,000          
Length of time for acquisition deferred cash payment to be made 19 months          
Contingent cash obligation/payment $ 2,000,000   $ 2,000,000   2,000,000  
Fair value of contingent cash payment 900,000   900,000   900,000  
Acquisition costs 300,000   300,000   300,000  
Fair value of deferred cash payment $ 4,700,000   4,700,000   4,700,000  
Indatus | Trade names            
Business Acquisition [Line Items]            
Amortized useful life of acquired intangible assets 1 year          
Indatus | Developed product technologies            
Business Acquisition [Line Items]            
Amortized useful life of acquired intangible assets 3 years          
Indatus | Client relationships            
Business Acquisition [Line Items]            
Amortized useful life of acquired intangible assets 10 years          
VRX            
Business Acquisition [Line Items]            
Total purchase price $ 2,000,000          
Cash portion of purchase price 1,500,000          
Contingent cash obligation/payment 3,000,000   3,000,000   3,000,000  
Contingent cash obligation related to acquisition 500,000   500,000   500,000  
Fair value of contingent cash payment $ 500,000   500,000   500,000  
VRX | Developed product technologies            
Business Acquisition [Line Items]            
Amortized useful life of acquired intangible assets 3 years          
2015 Acquisitions            
Business Acquisition [Line Items]            
Contingent cash obligation/payment   $ 400,000   400,000   $ 800,000
Aggregate deferred cash obligations   4,900,000   4,900,000   5,100,000
Deferred cash obligation discount   100,000   100,000   $ 200,000
Gain (loss) recognized due to change in fair value of cash consideration   $ 200,000 $ 0 $ 400,000 0  
Payments of contingent cash obligations         $ 0