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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
May 31, 2016
Goodwill And Intangible Assets [Line Items]        
Goodwill $ 195,300,000 $ 177,200,000 $ 169,200,000  
Impairment of goodwill 0 0 0  
Goodwill associated with the acquisition 17,700,000 8,100,000    
Impairment of long-lived assets 0 $ 0 $ 0  
2017 14,200,000      
2018 14,200,000      
2019 14,200,000      
2020 13,800,000      
2021 13,800,000      
Thereafter 134,700,000      
Sividon Diagnostics GmbH        
Goodwill And Intangible Assets [Line Items]        
Goodwill       $ 17,700,000
Diagnostics        
Goodwill And Intangible Assets [Line Items]        
Goodwill 129,900,000      
Diagnostics | Sividon Diagnostics GmbH        
Goodwill And Intangible Assets [Line Items]        
Goodwill associated with the acquisition 17,700,000      
Other        
Goodwill And Intangible Assets [Line Items]        
Goodwill $ 65,400,000      
Purchased Licenses and Technologies        
Goodwill And Intangible Assets [Line Items]        
Weighted average remaining amortization period 15 years      
Customer Relationships        
Goodwill And Intangible Assets [Line Items]        
Estimated useful life 6 years      
Weighted average remaining amortization period 15 years      
Trademarks        
Goodwill And Intangible Assets [Line Items]        
Estimated useful life 13 years      
Weighted average remaining amortization period 15 years      
Developed Technology and Database | Minimum        
Goodwill And Intangible Assets [Line Items]        
Estimated useful life 16 years      
Developed Technology and Database | Maximum        
Goodwill And Intangible Assets [Line Items]        
Estimated useful life 20 years