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Income Taxes - Reconciliation Between Statutory Federal Income Tax and Company's Effective Tax Rates as Percentage of Income Before Income Taxes (Detail)
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Income Tax Disclosure [Abstract]      
Federal tax rate 34.00% 34.00% 35.00%
States taxes, net of federal benefit 5.80% 2.40% 0.90%
Foreign rate differential (1.10%) (0.60%) (1.10%)
Stock-based compensation expense (13.30%) (3.60%) (1.70%)
Change in valuation allowance (25.00%) (60.50%) (1.00%)
Impairment of goodwill   (4.30%) (4.60%)
Research and development credits 1.60% 0.30%  
Other (0.80%) (0.70%) 0.80%
Effective income tax rate 1.20% (32.80%) 28.30%