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Acquisitions - Additional Information (Detail) (USD $)
 12 Months Ended 0 Months Ended 4 Months Ended 12 Months Ended 0 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Feb. 28, 2014
Crescendo Biosciences, Inc.
Jun. 30, 2014
Crescendo Biosciences, Inc.
Jun. 30, 2014
Crescendo Biosciences, Inc.
Feb. 28, 2014
Crescendo Biosciences, Inc.
Feb. 28, 2014
Crescendo Biosciences, Inc.
Developed Technology
Feb. 28, 2014
Crescendo Biosciences, Inc.
Database
Feb. 28, 2014
Crescendo Biosciences, Inc.
Minimum
Feb. 28, 2014
Crescendo Biosciences, Inc.
Maximum
Business Acquisition [Line Items]                      
Total consideration transferred       $ 258,950,000              
Business acquisition, cash transferred 223,531,000     225,100,000              
Elimination of intercompany balances related to accrued interest and term loan       25,900,000              
Fair value of purchase option granted       8,000,000              
Business acquisition, amount deposited into escrow account       20,000,000              
Period of audit completion                   12 months 15 months
Share-based compensation to Crescendo employees       6,929,000              
Control bonuses paid to Crescendo employees       5,695,000              
Intangible assets             196,600,000 165,400,000 31,200,000    
Discount rate of estimated net cash flows       19.00%              
Estimated useful lives of intangible assets, years       18 years              
Goodwill 169,181,000 56,850,000 56,850,000       112,331,000        
Interest income related to accretion of the note receivable           4,500,000          
Revenue 778,216,000 613,165,000 496,005,000   14,000,000            
Net loss 176,225,000 147,139,000 112,151,000   26,000,000            
Non-recurring acquisition related charges         $ 12,600,000