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Summary of Significant Accounting Policies - Estimated Useful Lives of the Assets (Detail)
12 Months Ended
Jun. 30, 2015
Computer equipment [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of the assets 3 years
Software [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of the assets 3 years
Furniture and fixtures [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of the assets 3 years
Furniture and fixtures [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of the assets 5 years
Leasehold improvements [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of Leasehold improvement the shorter of the lease term or the estimated useful lives of the improvements