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
Jun. 30, 2015
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Business Acquisition [Line Items]        
Gain (loss) recognized due to change in fair value of cash consideration   $ (126,000) $ 377,000  
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      
Fair value of contingent cash payment 900,000      
Fair value of deferred cash payment 4,700,000      
Direct acquisition costs $ 300,000      
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      
Contingent cash obligation related to acquisition 500,000      
Fair value of contingent cash payment $ 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   600,000   $ 800,000
Aggregate deferred cash obligations   4,900,000   5,100,000
Deferred cash obligation discount   (100,000)   $ (200,000)
Gain (loss) recognized due to change in fair value of cash consideration   200,000    
Payments of contingent cash obligations   $ 0 $ 0