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EARNINGS PER SHARE - Computation of basic and diluted earnings per share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Numerator:        
Net income attributable to common stockholders $ 41,792 $ 17,803 $ 82,320 $ 30,982
Denominator:        
Weighted-average shares used in computing basic net income per share 87,661 88,094 87,536 89,532
Weighted-average shares used in computing diluted net income per share 89,653 90,056 89,593 91,493
Net income per share of common stock:        
Basic (in usd per share) $ 0.48 $ 0.20 $ 0.94 $ 0.35
Diluted (in usd per share) $ 0.47 $ 0.20 $ 0.92 $ 0.34
Stock options
        
Denominator:        
Stock options 1,747 1,806 1,795 1,808
Restricted stock units
        
Denominator:        
Stock options 245 156 262 153