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Earnings Per Share (Tables)
9 Months Ended
Aug. 31, 2017
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended August 31, 2016 and 2017, respectively (in thousands, except share and per share amounts):
 
Three Months Ended
 
Nine Months Ended
 
August 31, 2016
 
August 31, 2017
 
August 31, 2016
 
August 31, 2017
Numerator:
 
 
 
 
 
 
 
Net income
$
2,173

 
$
265

 
$
43,902

 
$
34,765

Denominator:
 
 
 
 
 
 
 
Weighted average shares outstanding
45,720,814

 
44,482,281

 
46,189,413

 
44,799,734

Effect of dilutive securities
14,040

 
8,997

 
14,550

 
12,368

Diluted weighted average shares outstanding
45,734,854

 
44,491,278

 
46,203,963

 
44,812,102

 
 
 
 
 
 
 
 
Basic and diluted earnings per share
$
0.05

 
$
0.01

 
$
0.95

 
$
0.78

 
 
 
 
 
 
 
 
Anti-dilutive shares excluded in the computation of diluted earnings per share
75,068

 
42,486

 
85,591

 
58,084