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EARNINGS PER SHARE Earnings Per Share (Tables)
 3 Months Ended
Nov. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following table sets forth the computation of net income per share for the three months ended November 30, 2013 and 2012 (in thousands, except per share amounts):
 
Three Months Ended November 30,
 
2013
 
2012
Net income
$
21,432

 
$
20,005

Less: Allocation of income to unvested stockholders
(440
)
 
(407
)
Net earnings available to common stockholders
$
20,992

 
$
19,598

Basic weighted average shares outstanding
29,690

 
29,592

Add dilutive effect of stock options (two-class method)
12

 
12

Diluted average shares outstanding
29,702

 
29,604

Basic net income per share
$
0.71

 
$
0.66

Diluted net income per share
$
0.71

 
$
0.66