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Business Acquisitions - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 08, 2016
Jan. 05, 2016
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Business Acquisition [Line Items]          
Total purchase price, net of cash received     $ 0 $ 271,458  
Goodwill     $ 328,216   $ 327,724
Aesynt Holding, L.P., Aesynt, Ltd.          
Business Acquisition [Line Items]          
Total purchase price, net of cash received   $ 271,458      
Cash on hand at signing   8,164      
Goodwill   $ 163,599      
Aesynt Holding, L.P., Aesynt, Ltd. | Minimum          
Business Acquisition [Line Items]          
In process research and development, expected term     2 years    
Aesynt Holding, L.P., Aesynt, Ltd. | Maximum          
Business Acquisition [Line Items]          
In process research and development, expected term     3 years    
Aesynt Holding, L.P., Aesynt, Ltd. | In-process research and development (IPR&D)          
Business Acquisition [Line Items]          
Royalty rate     12.50%    
Aesynt Holding, L.P., Aesynt, Ltd. | Trade names          
Business Acquisition [Line Items]          
Royalty rate     0.50%    
Aesynt Holding, L.P., Aesynt, Ltd. | Developed technology | Minimum          
Business Acquisition [Line Items]          
Royalty rate     4.00%    
Aesynt Holding, L.P., Aesynt, Ltd. | Developed technology | Maximum          
Business Acquisition [Line Items]          
Royalty rate     8.00%    
Aesynt Holding, L.P., Aesynt, Ltd. | Customer relationships          
Business Acquisition [Line Items]          
Discount rate     13.00%    
Aesynt Holding, L.P., Aesynt, Ltd. | Backlog          
Business Acquisition [Line Items]          
Discount rate     10.00%    
Aesynt Holding, L.P., Aesynt, Ltd. | Non-compete          
Business Acquisition [Line Items]          
Discount rate     13.00%    
Ateb          
Business Acquisition [Line Items]          
Total purchase price, net of cash received $ 40,700        
Cash on hand at signing 902        
Goodwill $ 20,832        
Ateb | Trade names          
Business Acquisition [Line Items]          
Royalty rate         0.50%
Ateb | Developed technology | Minimum          
Business Acquisition [Line Items]          
Royalty rate         5.00%
Ateb | Developed technology | Maximum          
Business Acquisition [Line Items]          
Royalty rate         6.00%
Ateb | Customer relationships          
Business Acquisition [Line Items]          
Discount rate         15.00%