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Quantitative Information about Inputs and Valuation Methodologies Used for Fair Value Measurements Classified in Level 3 (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jul. 01, 2014
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
ECP Entwicklungsgesellschaft mbH        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Discount rate 22.50%      
Level 3 | Contingent Consideration        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Contingent consideration   $ 7,563 $ 6,510 $ 0
Level 3 | Contingent Consideration | ECP Entwicklungsgesellschaft mbH | Probability weighted income approach | Base Case Scenario        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Probability of occurrence   40.00%    
Level 3 | Contingent Consideration | ECP Entwicklungsgesellschaft mbH | Minimum | Probability weighted income approach        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Milestone date   2018    
Discount rate   8.00%    
Level 3 | Contingent Consideration | ECP Entwicklungsgesellschaft mbH | Minimum | Probability weighted income approach | Various Upside and Downside Scenarios        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Probability of occurrence   5.00%    
Level 3 | Contingent Consideration | ECP Entwicklungsgesellschaft mbH | Maximum | Probability weighted income approach        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Milestone date   2021    
Discount rate   12.00%    
Level 3 | Contingent Consideration | ECP Entwicklungsgesellschaft mbH | Maximum | Probability weighted income approach | Various Upside and Downside Scenarios        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Probability of occurrence   30.00%