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Fair Value - Additional Information (Detail) (USD $)
 3 Months Ended 3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Other Noncurrent Liabilities [Member]
Jun. 30, 2014
Other Noncurrent Liabilities [Member]
Sep. 30, 2014
Auction Rate Securities [Member]
Prepaid Expenses and Other Current Assets [Member]
Sep. 30, 2014
Validity Sensors, Inc [Member]
Sep. 30, 2014
Pacinian [Member]
Fair Value Disclosures [Line Items]              
Contingent consideration liabilities recorded for business combinations     $ 39,200,000 $ 52,700,000      
Current Portion of Investments         600,000    
Additional consideration           145,800,000  
Settlement of contingent consideration liability             5,000,000
Additional consideration paid to former stockholders based on sales of products, due             10,000,000
Transfer amount of assets or liabilities of level one 0 0          
Transfer amount of assets or liabilities of level two 0 0          
Transfer amount of assets or liabilities of level three $ 0 $ 0