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Net Income Per Share (Tables)
 3 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Schedule Of Net Income Per Share
 
 
Three Months Ended
September 30,
 
 
2013
 
2012
Basic earnings per share
 
 
 
 
Net income
 
$
30,630

 
$
19,429

Basic earnings per share
 
$
0.52

 
$
0.33

Diluted earnings per share
 
 
 
 
Net income
 
$
30,630

 
$
19,429

Diluted earnings per share
 
$
0.52

 
$
0.33

Weighted-average number of shares outstanding
 
 
 
 
Basic
 
59,063

 
58,424

Effect of dilutive securities
 
315

 
495

Diluted
 
59,378

 
58,919

Excluded as anti-dilutive*
 
685

 
1,024

* Represents options to purchase Common Shares excluded from the calculation of diluted earnings per share because the exercise price of the stock options was greater than or equal to the average price of the Common Shares during the period.