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EARNINGS PER SHARE Earnings Per Share (Tables)
 3 Months Ended
Nov. 30, 2015
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, 2015 and 2014 (in thousands, except per share amounts):
 
Three Months Ended November 30,
 
2015
 
2014
Net income
$
23,672

 
$
20,647

Less: Allocation of income to unvested stockholders
(334
)
 
(333
)
Net earnings available to common stockholders
$
23,338

 
$
20,314

Basic weighted average shares outstanding
29,890

 
29,791

Add dilutive effect of stock options (two-class method)
6

 
8

Diluted average shares outstanding
29,896

 
29,799

Basic net income per share
$
0.78

 
$
0.68

Diluted net income per share
$
0.78

 
$
0.68