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Earnings Per Share (Tables)
 9 Months Ended
Aug. 31, 2017
Earnings Per Share [Abstract]  
Calculation of Basic and Diluted Earnings Per Share
The following table sets forth the calculation of basic and diluted earnings per share on an interim basis (in thousands, except per share data):

 
Three Months Ended
 
Nine Months Ended
 
August 31,
2017
 
August 31,
2016
 
August 31,
2017
 
August 31,
2016
Net income
$
11,172

 
$
7,576

 
$
20,988

 
$
18,067

Weighted average shares outstanding
48,071

 
48,611

 
48,342

 
49,765

Dilutive impact from common stock equivalents
299

 
524

 
289

 
545

Diluted weighted average shares outstanding
48,370

 
49,135

 
48,631

 
50,310

Basic earnings per share
$
0.23

 
$
0.16

 
$
0.43

 
$
0.36

Diluted earnings per share
$
0.23

 
$
0.15

 
$
0.43

 
$
0.36