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Net Income Per Share
 9 Months Ended
Mar. 31, 2012
Earnings Per Share [Abstract]  
Net Income Per Share
NET INCOME PER SHARE
Basic earnings per share are computed by dividing net income by the weighted average number of Common Shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the shares used in the calculation of basic net income per share plus the dilutive effect of common share equivalents, such as stock options, using the treasury stock method. Common share equivalents are excluded from the computation of diluted net income per share if their effect is anti-dilutive.
 
 
Three Months Ended
March 31,
 
Nine Months Ended
March 31,
 
2012
 
2011
 
2012
 
2011
Basic earnings per share
 
 
 
 
 
 
 
Net income
$
34,774

 
$
35,830

 
$
117,203

 
$
94,611

Basic earnings per share
$
0.60

 
$
0.63

 
$
2.03

 
$
1.66

Diluted earnings per share
 
 
 
 
 
 
 
Net income
$
34,774

 
$
35,830

 
$
117,203

 
$
94,611

Diluted earnings per share
$
0.59

 
$
0.61

 
$
2.00

 
$
1.63

Weighted average number of shares outstanding
 
 
 
 
 
 
 
Basic
58,038

 
57,133

 
57,765

 
57,010

Effect of dilutive securities
783

 
1,226

 
932

 
1,122

Diluted
58,821

 
58,359

 
58,697

 
58,132

Excluded as anti-dilutive*
448

 
124

 
239

 
57


* Represents options to purchase Common Shares excluded from the calculation of diluted net income 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.