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Net Loss per Share - Calculation of Basic and Diluted Net Loss per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Basic and Diluted:      
Net loss $ (20,008) $ (146,404) $ (67,372)
Basic and Diluted:      
Weighted average shares of common stock used in computing basic and diluted net loss per share 44,454 43,528 42,816
Net loss per share:      
Basic and Diluted $ (0.45) $ (3.36) $ (1.57)
Securities excluded from weighted average shares used in computing diluted net loss per share because the effect would have been anti-dilutive: 8,198 8,843 9,417