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Income Taxes - Components of Loss Before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Income Tax Disclosure [Abstract]      
US $ (18,917) $ (109,257) $ (89,087)
Foreign (1,335) (938) (4,886)
Loss before income taxes $ (20,252) $ (110,195) $ (93,973)