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Segments and Geographic Information - Additional Information (Detail)
$ in Thousands
1 Months Ended 3 Months Ended
Nov. 30, 2016
USD ($)
Mar. 31, 2017
Segment
Customer
Mar. 31, 2016
USD ($)
Customer
Revenues from External Customers and Long-Lived Assets [Line Items]      
Number of operating segments | Segment   2  
One time payment, royalty revenues | $     $ 899
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Product Segment [Member] | Customer One [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk percentage   17.00%  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Service [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Customers accounted for 10% or more of total revenues | Customer   1 0
Credit Concentration Risk [Member] | Accounts Receivable [Member] | Product Segment [Member] | Customer Two [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk percentage   11.00%  
Credit Concentration Risk [Member] | Accounts Receivable [Member] | Service [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Number of customers | Customer   2 1
Credit Concentration Risk [Member] | Accounts Receivable [Member] | Service [Member] | Customer One [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk percentage   14.00% 11.00%
Allergan [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
One time payment, royalty revenues | $ $ 11,000    
Allergan [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Product Segment [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk percentage     12.00%
Merck KGaA [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Product Segment [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk percentage   100.00% 88.00%