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Net (Loss) Income Attributable to Common Stockholders and Net (Loss) Income per Share - Calculation of Basic and Diluted Net Income Per Share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Basic and Diluted:        
Net (loss) income $ (63,491) $ 4,433 $ (63,628) $ 9,927
Basic:        
Weighted average shares of common stock used in computing basic net (loss) income per share 42,777 47,054 42,795 47,266
Diluted:        
Weighted average shares of common stock used in computing basic net (loss) income per share 42,777 47,054 42,795 47,266
Weighted average effect of dilutive securities:        
Stock options    883    1,158
Restricted stock units          18
Weighted average shares of common stock used in computing diluted net (loss) income per share 42,777 47,937 42,795 48,442
Net (loss) income per share:        
Basic $ (1.48) $ 0.09 $ (1.49) $ 0.21
Diluted $ (1.48) $ 0.09 $ (1.49) $ 0.20
Securities excluded from weighted average shares used in computing diluted net (loss) income per share because the effect would have been anti-dilutive: 10,505 7,891 8,902 6,176